. Research findings show we spend about two hours dreaming every night, no matter what we ____ have done during the day.
#88332
A
should
B
would
C
may
D
must
推荐题目
So far no life has been found outside the earth, but while some scientists are actively searching for living things in outer space, others firmly believe there ____ .
#88293
A
mustn’t be
B
may not be
C
can’t be
D
won’t be
Without the ‘ greenhouse effect’, the earth ____ be about thirty-three degrees Celsius cooler than it is.
#87137
A
should
B
would
C
will
D
must
— Excuse me, Is this the right way to the Summer Palace ?— Sorry, I am not sure, but it _______ be.
#89259
A
might
B
will
C
must
D
can
-- I ________ to your birthday party last Sunday!-- Unfortunately, you were on business.
#87390
A
had come
B
came
C
would come
D
would have come
——Yesterday, I didn’t see Ben at the party. —— You _____ him. We just came back from Beijing this morning.
#87561
A
mustn’t have seen
B
needn’t have seen
C
couldn’t see
D
can’t have seen