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 have seen

D．to see

Answer 1

答案：D
解析：

我们跟踪的那个人突然停下来好象要看一下他走的方向是否正确。不定式做目的状语。