The boy the first prize, but he was so careless as to make a foolish mistake.
#87720
A
must have gained
B
need have gained
C
could have gained
D
shall have gained
推荐题目
—Excuse me, visiting hours are over．It' s time for you to leave．—I' m sorry, I didn't know the time or I ______ earlier．
#87146
A
will leave
B
would leave
C
had left
D
would have left
I was on the highway when this car went past followed by a police car. They ______ at least 150 kilometers an hour.
#87579
A
should have been doing
B
must have been doing
C
could have done
D
would have done
Since the road is wet this morning, _____ last night.
#90138
A
it must rain
B
it must be raining
C
it must have rained
D
it must have been rain
I have been looking for Michael for a whole day. Where ______ he have gone?
#88143
A
should
B
can
C
must
D
may