(单选题)1: I am sorry____________ written you a letter at the time. A: to have not B: to not have C: not to have D: not having 正确答案:
(单选题)2: — You should have thanked her before you left.— I meant____________, but when I was leaving I couldn't find her anywhere. A: to do B: to C: doing D: doing so 正确答案:
(单选题)3: If you refuse to go to the party,____________. A: so would she B: so does she C: so will she
D: neither will she 正确答案:
(单选题)4: The thief took away the woman's wallet without____________. A: being seen B: seeing C: him seeing D: seeing him 正确答案:
(单选题)5: My classmate____________a lot of good deeds for others. A: has been done B: did
C: was doing D: had done 正确答案:
(单选题)6: As a result of my laziness, I failed____________my work in time. A: and finished B: to finish C: and finishing D: to finished 正确答案:
(单选题)7: The event ____________ at the time last year.
A: happens B: happened C: is happened D: was happened 正确答案:
(单选题)8: On the ground ____________ a dead snake. A: did lie B: did lay C: laid D: lay 正确答案:
(单选题)9: We can go when the ground____________. A: is drying B: has dried C: dried D: dry 正确答案:
(单选题)10: Look, this roof is covered with____________leaves. A: falling B: fallen C: fell D: felt 正确答案:
(单选题)11: He said that he ____________to the United States. A: had never been B: had never gone C: was never
D: has never been 正确答案:
(单选题)12: Middle school boys____________not to smoke. A: always tell B: are told always C: are always told D: is always told 正确答案:
(单选题)13: He thought that ____________. A: the effort doing the job was not worth B: the effort was not worth in doing the job
C: it was not worth the effort doing the job D: