Question

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

Answer 1

答案：C
解析：

当as if后面直接跟一个动词时，常使用不定式to do来表示目的，相当于as if he were(was)to do sth．，说明动作的未完成性。