.We were all waiting for you .You _____for the seaside by yourself without leaving a message.
#89123
A
mustn’t leave
B
shouldn’t have left
C
couldn’t have left
D
needn’t leave
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—Your sister nearly _________ all her spare time to her study during the three years.—That’s right, or she _________ the first place in her school in the College Entrance Examination.
#87642
A
devoted; wouldn’t have taken
B
spent; wouldn’t have taken
C
hadn’t devoted; hadn’t taken
D
hadn’t spent; couldn’t take
___________, he would have been fired. 
#88131
A
Had he lied to the boss
B
Did he lie to the boss
C
If he has lied to the boss
D
If he lies to the boss
———It was a green dinner. _______ ———Thanks. But it really only took an hour.
#87721
A
You must be tired.
B
I enjoyed it very much.
C
You must have spent all day cooking.
D
I have never had it before.