26.Is this the third time that you ________ late?
A. have been
B. am
C. was
D. had been
查看答案
27.—Do you know when Tom ________ from abroad?Perhaps it will be a long time before he ________.
A. will come; will come
B. comes; will come
C. will come; comes
D. comes; comes
28.My uncle said that he would telephone but I _____from him so far.
A. didn’t hear
B. hadn’t heard
C. haven’t heard
D. won’t hear
29.The telephone ________ four times in the last hour,and each time it ________ for my roommate.
A. has rung; was
B. has been ringing; is
C. had rung; was
D. rang; has been
30.A storm ________ by a calm.
A. is often being followed
B. was often followed
C. is often followed
D. has often been followed