－Why didn’t Susan come to see us yesterday as she promised?－______.
#87312
A
She must be busy
B
She might have been free
C
She must have been busy
D
She can’t be free
推荐题目
It is quite impossible that it will rain tomorrow. But if it __________, I would still go to school by bike.
#86697
A
should rain
B
would rain
C
rains
D
had rained
He _____ his parents that he has failed in the exam.
#90078
A
dares not tell
B
dares not telling
C
dare not tell
D
dares not to tell
—What happened to the young trees we planted last week?—The trees ____ well, but I didn’t water them.
#87377
A
might grow
B
needn’t have grown
C
would have grown
D
would grow