题干

(2013·西安模拟)The man we followed suddenly stopped and looked as if
whether he was going in the right direction.
A.seeingB.having seen
C.to seeD.to have seen
上一题 下一题 0.64难度 单项选择 更新时间:2014-03-19 03:36:10

答案(点此获取答案解析)