a. oughtn’t b. don’t c. shouldn’t d. won’t
31.We’d better wait for ten more minutes, ___?
a. hadn’t we b. don’t we c. didn’t we d. wouldn’t we
32. I’d like a sandwich, ____?
a. would you b. do you c. couldn’t you d. don’t you
33.This is the third time this week John has had to study late, ___? a. hasn’t he b. isn’t he c. hasn’t it d. isn’t it
34.You and I did it together, ___?
a. didn’t I b. didn’t you c. did you d. didn’t we
35.They should have completed it earlier, ____?
a. should they b. shouldn’t they c. have they d. haven’t they
36. You may take it if you want to, ___?
a. mayn’t you b. don’t you c. shouldn’t you d. won’t you
37.You must have told Mr. Smith the secret, ___?
a. mustn’t you b. must you c. haven’t you d. have you
38.She disliked the skirt his father bought her, ___?
a. did she b. didn’t she c. was she d. wasn’t she
39.Tom said he was not there then, ___?
a. didn’t he b. did he c. wasn’t he d. was he
40. I suppose he is honest , ___?
a. don’t I b. do I C. isn’t he d. is he