---The meeting has begun and he will e.
---Of course, he is sure to e. He’ll speak at the meeting.
A. I believe
B. I hope
C. I think
D. I doubt if
网友回答
A. I believe
B. I hope
C. I think
(答案→)D. I doubt if
解析：考查交际用语。A我相信；B我希望；C我认为；D我怀疑是否。句意：因为会议已经开始了，他还没来，所以表示疑惑，他还会不会来。