The man we followed suddenly stopped and looked as if （ ） ..
题目
The man we followed suddenly stopped and looked as if （ ） ..
The man we followed suddenly stopped and looked as if （） whether he was going in the right direction.
A.to see
B.seeing
C.to have seen
D.having seen
为什么不选B?求逐项分析.
答案
举一反三
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