赞题库-背景图
单项选择题

He ______ the 8:20 bus because he didn"t leave home till 8:25.

A．couldn"t have caught
B．ought to have caught
C．shouldn"t have caught
D．must not have caught
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热门试题

单项选择题You ______ Jim anything about it. It was none of his business.

A．needn"t have told
B．needn"t tell
C．mustn"t have told
D．mustn"t tell

单项选择题As it turned out to be a small house party, we ______ so formally.

A．need not have dressed up
B．must not have dressed up
C．did not need to dress up
D．must not dress up