We should wear special boots __________ us floating away into the space .
A . to prevent B. preventing
C. prevent D. prevented
---I’m too nervous to give a talk in front of so many people.
--- _________, Maria. I think you can make it.
A. That’s true B. With pleasure
C. Come on D. You’re right
---Mr. Wu, I can’t understand everything in class.
---Don’t worry! I’ll _______ the main points at the end.
A. record B. review
C. require D. remember
--- What did Lucy ask just now ?
---- She asked _________________________.
A.if there will be a meeting.
B.when the meeting will begin
C.if would there be a meeting
D.when the meeting would begin
--- You were out when I went to visit you yesterday.
---Oh, I________ for a friend from England at the airport.
A. was waiting B. had waited
C. am waiting D. have waited
---__________ is it from here to Yangzhou Museum?
--- About 20 minutes by bike.
A. How long B. How often
C. How far D. How soon