问题

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 have seen
D: to see
B: having seen
C: to have seen
D: to see
正确答案是:
同类题型
raise to yourself,____ you’ll build upconfidence throughout the difficult times.
_________ production up by 60 % , the company has had another excellent year
166 Kunming is said to be a city of springall the year round But the weather there ______ unpleasant
What about _____hiking thisafternoon? –Great.I’d like withyou.