1. Mai worked hard , ______ she passed her exam .a. so b. although c. because d. though
2. _____ she was very tired , she helped her brother with his homework .
a. Because b. whether c. Although c. so
3. It’s raining hard , _____ we can’t go to the beach . a. or b. but c. so d. though
4. Nam was absent from class yesterday ____ he felt sick .a. so b. because c. although d. but
5. Tom has a computer , _____ he doesn’t use it . a. or b. as because d. but
6. The boy can’t reach the shelf ____ he’s not tall enough.a. because b. although c. even though d. and
7. The film was boring , ____ we went home .a. so b. when c. but c. if
8. The girl bought the shoes _____ they are very expensive .a. but b. if c. so d. although
9. He used to smoke a lot ______ now he doesn’t smoke any more . a. still b. therefore c. but d. as
10. She couldn’t unlock it ______ she had the wrong key . a. while b. but c. though d. because
11. ____ it rained , the boys played football .a. Even b. Even though c. However d. In spite of
12. It was still painful , ____ I went to see a doctor .a. so b. however c. but d. or
13. Lan likes oranges _____ her sister doesn’t .a. but b. as c. so because
14. Nam failed the final exam _____ he was lazy .a. while b. though c.because d. but
15. He’s tired _____ he stayed up late watching TV.a. and b. or c. if d. since
16. Jim can speak English _____ French fluently .a. also b. but also c. and d. so
17. _______ the traffic , I arrived on time .a. Though b. Although b. Even though d. In spite of
18. ______ they live near us , we can see them very often .a. So b. As c. Though d. Even
19. ______ I was really tired , I couldn’t sleep . a. If b. Although c. While D. However
20. We watched TV the whole evening ______ we had nothing better to do .
a. because b. though c. so d. but