问题描述:
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.
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.
问题解答:
我来补答展开全文阅读