问题

We were all waiting for you. You _____ for the seaside by yourself withoutleaving a message.
A:mustn’t leave
B:shouldn’t have left
C:could not have left
D:needn’t leave
B:shouldn’t have left
C:could not have left
D:needn’t leave
正确答案是:
同类题型
_____it was looking at the souvenirs, the shop assistant called the police.
The new movie _____to be oneof the biggest money-makers of all time
So far there is no proof people from other planets do exist.[ ]
He was in hospital for six months. He feltas if he was ________ from the outside world.
Modern science and technology has __________communication between people far apart.