The space suits can be adjusted so that the team can reproduce different levels of gravity as if they________in space.
#86407
A
are
B
has been
C
were
D
had been
推荐题目
——You didn’t wait for Mr. Black last night, did you?——No, but we ____. He didn’t return home at all.
#89422
A
couldn’t have
B
needn’t have
C
didn’t need to
D
should wait have
“Would you have told him the answer had it been possible?” “I would have, but I ＿＿＿＿so busy then.”
#89921
A
had been
B
were
C
was
D
would be
—___the new comer join us in the work?—Certainly! We are short of hands presently．
#87831
A
Shall
B
Would
C
May
D
Must
.---I didn't go to work yesterday because my car broke down. ---You ____ mine. I wasn't using it then.
#89999
A
might borrow
B
could have borrowed
C
must have borrowed
D
ought to borrow
Jack _______ yet last night, otherwise he _______ me.
#89893
A
mustn’t have arrived; must have phoned
B
can’t have arrived; would have phoned
C
may have arrived; need have phoned
D
shouldn’t have arrived; can have phoned