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
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。答案为C。