Exercise 1:
1. she (go) ------------------ to school everyday
2. there (to be)  ------------------ big problems in many parts of the world.
3. A lot of people (go) -------------------- to work by car.
4. Davis never (take) ---------------------- the bus to school.
5. He plays volleyball but he (not enjoy)-----------------------  it.
6. Most shops usually (open) ------------------------- at 8.00 a.m and (close) --------------------- at 6.00 p.m.
7. School children (wear) ------------------------- uniform on Monday.
8. I want ( buy)-------------------  some stamps.
9. Ruth (live) ----------------- with his parents in an apartment.
10. He is writing a postcard and (watch)---------------- TV at the same time.
Exercise 2:
1. I (see) ------------------- a car accident on this corner yesterday
2.  Mr. John (be) ------------------ principal of our school since last year.
3. My father (not watch) --------------------- TV every night.
4. I (meet) -------------------- Arthur three weeks ago. 
5. Yesterday the police (report) -------------------------- that they (capture)--------------------- the thief.
6. Someone (steal) ------------------------ my handbag on the bus.
7. Last month I (be) ------------------------- in the hospital for ten days.
8. Don’t call me in the afternoon. I usually (be) --------------------------- away in the afternoon.
9. People (speak) ------------------- English in almost Canada.
10. The dog (wag) --------------------- his tail whenever he (see) ------------------------- me.
Exercise 3.
1. I think he (leave) -------------------- as soon as he (know)--------------------  the news
2. He (come) ------------------- and (see) --------------------- you soon.
3. My mother (come) ----------------------- to stay with us next weekend.
4. Where you (spend) ------------------- your holidays next summer?
5. Violets (bloom)-----------------  in spring. 
6. They (prepare)-------------------- the Christmas dinner at the moment.
7. When he lived in Manchester, he (work) ---------------- in a bank.
8. Birds (build) ------------------ their nests in summer and (fly)-------------------- to the South in winter.
9. I (lose) -------------------my key. (can) ---------------------you help me look for it?
10. My brother (join) ----------------------the army when he (be) --------------------young.
Exercise 4:
1. Miss Lee often (write) when he (be) young.
2. He (leave) home two weeks ago 
3. You (speak) to Mrs. Bakers yesterday?
4. Columbus (discover) America more than 400 years ago.
5. I (not can) remember when I last (see) her.
6. When Nguyen Du (die)? - I (not know) when he (die).
7. Hurry up! The train (come).
8. Be quiet! The teacher (be) angry.
9. Some animals (not eat) during winter.
10. Listen! The bird (sing).
Exercise 5:
1. I (finish) the book before my next birthday.
2. The house (build) two years ago.
3. Someone (cut) down all the trees in the garden.
4. Tom Baker (not come) here tomorrow.
5. He often (say) O.K. when he (talk) with the quests.
6. What you (do) after you (go) home yesterday?
7. Yesterday thieves (break) into the house and (steal) a lot of fur coats 
8. The audience (listen) to everything he said last night.
9. I’m preparing to support anything he (say) tomorrow.
10. Sometimes I (get) up before the sun (rise).
Exercise 6:
1. Don’t speak until someone (ask) you.
2. Please be quiet! I (work).
3. When I (be) a child, I (want) to be a doctor.
4. The last train (leave) the station at 5 p.m.
5. I (meet) her at the movie theater last night 
6. He (go) to the English club every Sunday. But last Sunday he (not go) there
7. We (travel) to Hue next morning 
8. They usually (have) dinner at home, but they (have) dinner in a small restaurant yesterday evening
9. He (brush) his teeth every night, but last night he (forget) to brush them
10. My father (not like) .............................drinking wine. He prefer (drink).........beer
Exercise7:
1. When I (be)....................a child. I (drink).....................a lot of milk
2. My family often (go)..............out for a dinner at the weekend
3. She’d like (tell)............................funny stories
4. She prefers (play) .............................piano
5. Nga prefers (listen) .......................rock music to (listen)..................pop music
6. I prefer (take)......................part in sport to(watch)..................them
7. The students prefer (gather)....................in the streets.
8. When Mai (be).....................young ,She (like)................(go)..................to the zoo to see animals
9. At the moment we (sit) in a cafe. We (wait) for the museum to open
10. Thanks for (invite) me to the birthday party.
Exercise 8:
1. My sister (buy) a new book yesterday morning.
2. Where they (spend) their summer vacation next year ?
3. What you (think) Tom (do) ?- he (tell) the truth to his parents.
4. You(wait) a minute while I (look) through the test ?
5. After the party tonight I (speak) to you about your future job.
6. Don’t make too much noise. I ( do) this math question.
7. Now I (understand) what you are trying ( say).
8. I’m afraid I not (be) quite ready. – Never mind. I (wait)
9. At the moment we (sit) in a café, we 9 wait) for the museum to open, so I (write) some postcards.
10. Miss Helen (help) as soon as she  (finish) that letter.

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