赞题库-背景图
单项选择题

My pain ______ apparent the moment I walked into the room, for the first man I met asked sympathetically: "Are you feeling all right"

A. must be
B. must have been
C. had been
D. had to be
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热门试题

单项选择题Mary wishes that she ______ law instead of history when she was in college.

A. had studied
B. has studied
C. studies
D. studied

单项选择题He must have had an accident, or he ______ then.

A. would have been here
B. had to be here
C. should be here
D. would be here