22. Gray didn’t recognize his old classmate ________ he was told her name.
A. when B. unless C. so D. until
21. Stop smoking, _______ you will get better soon.
A. and B. or C. that D. after
20. I think we should get this computer, _______ it will take up more space.
A. but B. although C. and D. so
19. This coat will not lose colour ________ it’s washed.
A. until B. till C. before D. after
18. I’m sorry, _______ I can’t help you with your homework.
A. and B. but C. or D. then
17. I may live _______ in a hotel _______ in a friend’s house.
A. both; and B. either; or C. neither; nor D. between; and
16. Mr Smith is an English teacher _______ will teach us English next term.
A. or B. and C. but D. so
15. _______ my mother ________ my sister watches football games these days.
A. Either; nor B. Both; and C. Neither; nor D. Neither; or
14. –What is writing brush, do you know? --It’s used _______ writing and drawing.
A. with B. to C. for D. by
13. It’s raining outside. Put on more clothes, _______ you may catch a cold.
A. and B. but C. or D. though