问题补充：
An important meeting will be held in the school hall. Everyone there on time.
A. expects to be
B. is supposed to be
C. looks forward to be
D. is hoped to
答案：
A. expects to be
(答案→)B. is supposed to be
C. looks forward to be
D. is hoped to
解析：词义辨析题。be supposed to “应该”后接动词原形；look forward to “盼望”后接动名词。在学校大厅要举行一次重要会议，大家应该按时到那。选B
