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

问题描述:

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

D.他停下来去看自己是否走了正确的方向 用to do结构表目的