21. Ba missed the Math test yesterday. ________, he will have to do it next week.
A. therefore B. but C. and D. because
22. My sister is very tired: ________, she still has to cook dinner for the family.
A. so B. however C. and D. as
23. She doesn’t look so pretty ________.She has soft voice.
A. and B. but C. so D. however
24. They don’t like the opera ________ it doesn’t look sound interesting.
A. and B. but C. because D. so
25. Daisy is very nice: ________, all her friends love her very much.
A. and B. so C. therefore D. because
26. Can you turn­­­­­­­­­_________ the lights? It’s too dark.
A. on B. off C. in D. for
27. What are you looking ________? My picture book. I’ve lost it.
A. on B. off C. for D. after
28. There are ________ saving methods and inventions to use solar energy.
A. energetic B. energize C. energy D. power
29. I had to pay much money this month for the international________.
A. calls B. calling C. to call D. called
30. A new – conditioner will be ________ this morning.
A. to install B. installed C. installing D. to install.
31. Scientists are looking for an ________ way to educe energy consumption.
A. effect B. affection C. effective D. effectively
32. We can ________ easily in the daylight.
A. to read B. reading C. read D. readable
33. She won’t take all these suitcases ________ she likes to travel lightly
A. so B. but C. because D. and
34. They are completely short of water now. A number of people have died because of this ___
A. shortage B. short C. shorten D. shortening
35. What can we do to spend less ________ lighting?
A. in B. on C. about D. at
36. There will be a _______cut tomorrow in Bu Nho.
A. energetic B. energize C. energy D. power
37. Your house needs _________ right now it’s too old.
A. paint B. painted C. to paint D. painting
38. My father used to make me ________hard at night.
A. study B. to study C. studying D, studied
39. Will you _________for dinner one night.
A. across B. down C. over D. in
40. It is necessary that the government ________something about it immediately.
A. do B. did C. to do D. have done
41. He talks as if he_________ about it clearly.
A. know B. to know C. knowing D. knew
42. She _______ hard last night. She did her test perfectly this morning.
A. can have studied B. might have studied
C. should have studied D. must have studied
43. That’s the _______ interesting novel I’ve ever read.
A. more B. even C. most D. every
44. My color TV, _______ I bought 10 years ago, still gives beautiful pictures.
A. which B. that C. what D. X
45. He is very stubborn, so it will be difficult to _______ him to go.
A. persuade B. suggest C. make D. prevent
46. “Who is Mr. Medley?” “I have no idea. I’ve never heard _______ him”.
A. about B. from C. after D. of
47. Children are _______ to overcome problems.
A. determine B. determined C. determinant D. determination
48. They will be sent to work in America _______ their English is better next year.
A. when B. unless C. if D. because
49. I’ve never ______very well with my brother. We’ve got completely different personalities.
A. got off B. got on C. got away D. got up
50. ____ lion dancing is very popular in Viet Nam, my friend Andy does not enjoy it.
A. But B. Although C. If D. However
 
IV. Complete the conversations with expressions for suggestion.
1. A: I like having seafood for dinner.
B : ______________ go to the restaurant by the seaside?
2. A: I’m really tired.
B : I’m tired too. ______________ resting for a while?
3. A: ______________ travel around the town?
B : That’s a good idea. ______________ hiring a motorcycle. We’ll see a lot more that way.
4. A: I want to buy some souvenirs before we leave.
B : OK. ______________ go shopping after dinner.
5. A: What should I do to save electricity?
B : I ______________ turn on a lot of lights and remember to turn off television before going to bed.
6. A: It’s a lovely day. ______________ go for a picnic?
B : No. I don’t want to. ______________ playing tennis.

​​V. Use the words given in the box to fill in the blanks to make a meaningful passage. There is one extra word that you don’t need to use:
recycling/ nothing/ list/ vegetables/ something/ save/ trouble/ polluting/ taking.
Our environment is in (1) ______. Modern ways of living and today’s industries are (2) ______ it. Most people think there is (3) ______ they can do. This is not true. Everyone can do something to help (4) ______ our environment. Here is a (5) ______ of things you can do.
- Help to cut pollution by (6) ______ the bus to work instead of your car.
- Buy fruit and (7) ______ that have not been treated with pesticides.
- Recycle all your cans, bottles and paper. There should be a (8) ______ center somewhere near your home, so take them there.
Most of the world’s energy comes from the sun. The sun’s energy is in wood, oil, and other things that people use for energy.
VI. Read the text then answer true or false
People use many sources of energy. Ancient people used only their arms, hands, and simple tools until they discovered fire. Later, people learned to use the energy of the wind to sail ships. Then they learned to use animals to do work. In the eighteenth and nineteenth centuries, people began to use machines. The first machines used steam. They burned coal to heat water. The hot water turned into steam, and the steam engine did the work. Later, people began to use the gasoline engine, and today people are using nuclear energy.
Energy is one of the basic concepts, or ideas, of physics. It is the ability to do work. Without energy we could live. We need energy to work, and scientists are always looking for new sources of energy.
1. None of the world’s energy comes from the sun.
2. Wind, steam, and gasoline are sources of energy.
3. People have never used nuclear energy.
4. Energy is the ability to do work.
5. We need new sources of energy.
VII: Complete each of the following sentences in such a way that means the same as the first one
1. Mary no longer prepares for the wedding parties
à Mary doesn't........................................... ......................................................................
2. Who owns this motorcycle?
à Who does........................................................................................................................?
3. How long have John and Mary been married?
à When did.................................................. ......................................................................
4. Remember to check for spelling mistakes before you hand in your composition.
à Don’t.................................................. ............................................................................
5. The sea was too rough for the children to go swimming
à The children......................................................................................................................
6. Mary rang hours and hours.
à It is.................................................. ..................................................................................
7. He failed to win the race.
à He didn't........................................................................................................... ................
8. It was only when I looked the room that I realized I hadn't turned off the cooker.
à Not until.................................................. .........................................................................
9.You know a bit about cars but I know more.
à You don’t....................................................................................................................... ..
10. The rain began to fall during my walk in the country.
à While.................................................................................................................................
VIII: Use the correct form of the words in the brackets to complete the following sentences. 
1. The man could give no.........for his violent behavior. (EXPLAIN)
2. Although her visit was ........., we made her welcome just the same. (EXPECT)
3. I know all the boys who live in my................ (NEIGHBOUR)
4. He does not agree with the.....that there is life on other planets. (BELIEVE)
5. He examined the parcel......, as he had no idea what it could be. (SUSPECT)
6. All the courses ....... in January will finish in June. (BEGIN)
7. A letter should always end with the ...... of the writer. (SIGN)
8. It is really quite.....that we should have been at the same college without having met before (ORDINARY)
9. There is a great.....between Hari and his twin brother. (SIMILAR)
10. With a good.... of the criminal from witnesses, the police were able to find him easily. (DESCRIBE