---Thanks for your help, but can you do me one more favor, please?
---____ , sir. What’s it then?
A. Just a minute B. At your service
C. That’s right D. It’s my pleasure
He is a man of few words, and seldom speaks until _______ to.
A. speaking B. spoken C. speak D. be spoken
-- May I smoke here?
-- If you____, that's the smoking section over there.
A. should B. could C. may D. must
---How do you find James Cameron's 3D version of Titanic?
---Fantastic! It can't be _______ and has brought us a wonderful experience.
A. more impressive B. as impressive
C. most impressive D. so impressive
It was the belief ____ Alex Haley could find his root in Africa ____made him decide to go to Zombia．
A． /, which B．which, that
C． that ,which D．that ,that
The boy went swimming in the deep lake， his mother's fear for his safety．
A．but for B． apart from C． regardless of D． instead of
