must be
would have been
must have been
would be
第1题:
A、not until midnight did he go.
B、until midnight that he didn’t go.
C、not until midnight that he went.
D、until midnight when he didn’t go.
第2题:
A、study didn’t/studies
B、didn’t study/study
C、did not study/studies
D、didn’t studied/studies
第3题:
A.come out
B.come off
C.come about
D.come to
第4题:
A: he knew
B: he didn't know
C: did he know
D: he couldn't know
第5题:
A.why
B.for
C.as
D.because
第6题:
Why hasn't he come? ______on time, we will have to put off the trip.
A. If he doesn't come
B. If he won't come
C. If he shouldn't come
D. If he hadn't come
16.答案为A 从句中的we will...可判断出空白处应为一个时间状语从句,具谓语要用一般现在时代替一般将来时。
第7题:
第8题:
A、come out
B、come off
C、come about
D、come to
第9题:
I didn't finish my homework. Neither().
A. did he
B. didn't he
C. he did
第10题:
He didn't run fast. He didn't catch the bus.(用enough...to将两句连成一句)