问题
选择题
The man we followed suddenly stopped and looked as if ________ whether he was going in the right
direction.[ ]
A. seeing
B. having seen
C. to see
D. to have seen
答案
答案：C
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The man we followed suddenly stopped and looked as if ________ whether he was going in the right
direction.[ ]
A. seeing
B. having seen
C. to see
D. to have seen
答案：C