I     have passed my examination easily, but I made too many stupid mistakes.
#87435
A
must
B
will
C
shall
D
could
推荐题目
Had I known about this computer program, a huge amount of time and energy________.
#87046
A
would have been saved  
B
had been saved
C
will be saved
D
was saved
I told Sally how to get here, but perhaps I _______ for her. 
#89978
A
had to write it out
B
must have written it out
C
should have written it out
D
ought to write it out
Tom hurried to school only to find that there was none because it was Sunday and he _____to school.
#87696
A
couldn’t have gone
B
needn’t have gone
C
mustn’t go
D
needn’t go