There is a possibility that these hens could be frightened and lay fewer eggs       a sudden loud noise.
#87102
A
should there be
B
there was
C
would there be
D
there having 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. 
#89202
A
couldn’t have
B
needn’t have
C
didn’t need to
D
should wait have
If we    a table earlier, we couldn’t be standing here in a queue.
#86871
A
have booked
B
booked
C
book
D
had booked