问题
选择题
We are supposed ______ the lost child at once.
A．find
B．to finding
C．finding
D．to find
答案
答案：D
be supposed to do sth应该, 认为必须, 被期望做某事.根据题意我们被期望立即找到失踪的孩子.所以选D.
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We are supposed ______ the lost child at once.
A．find
B．to finding
C．finding
D．to find
答案：D
be supposed to do sth应该, 认为必须, 被期望做某事.根据题意我们被期望立即找到失踪的孩子.所以选D.