Ex 1: Choose the correct answer to fill in the blank
1. - A: Would you like to drink a cup of tea ________ coffee?    - B: Coffee, please.
A. and            B. or            C. although            D. but    
2. My brother plays volleyball well ________ I do not.
A. and            B. but            C. or                D. although
3. Most people like watching comedy ________ it's sxery entertaining.
A. because        B. so            C. although            D. but
4. _________ Minh likes sport programmes, he watches this animal programme with his family.
A. Because        B. Although        C. and                D. but
5. The film is very interesting. It's both moving ________ funny.
A. and            B. or            C. although            D. but
6. I have to go out, ________ I cannot watch television with my family tonight.
A. but            B. so            C. although            D. or
7. We decide to go out ________ it's raining heavily.
A. though        B. so            C. because            D. but
8. ________ she knows that watching too much TV is a bad habit, she watches less TV than she did before.
A. Because        B. Although        C. or                D. but
Ex 2: Fill in each blank with one of the conjunctions "and/ or/ but/ so/ because/ although" to complete the sentences.
1. Is her child a boy ……………a girl? 
2. I forgot to bring the map, ……………….I got lost. 
3. He failed the examination …………………..he didn't study hard.
4. Lien won the match ………………………. she was injured.
5. My new classmate is quite friendly …………………… sociable.
6. I don't like watching films on TV …………………….. I like watching them at the cinema. 
7. She likes watching cartoons ………………………….they are colorful and funny. 
8. He helps his friends a lot …………………. he is very busy. 
9. Lan sings very well …………………..she cannot sing in front of many people.
10. The movie was very boring ……………….. we went out to go shopping. 
Ex 3: Fill in each blank with a suitable clause to complete the compound sentences.
A. because it is bad for your health 
B. and this programme is on VTV3
C. so you will be fat; because the old one is broken;
D. though it's not good for your health;
E. but it is broadcast too late
1. You should eat less junk food   ..................................................................................................................................
2. I want to watch this programme   ............................................................................................................................
3. My father will buy a new television      ………………………………………………………………………………….