---I will enter a speech competition next week.
---___________
A. Good luck! B. Well done!
C. Thank you! D. The same to you!
---Sally, I went to the concert last night. How big the symphony hall is!
---So it is. It is ___________ to hold more than one thousand people.
A. big enough B. enough big
C. too big D. so big that
---Could you please tell me________________?
---Yes. There is one on Center Street.
A. where can I buy some stamps
B. when you will take your vacation
C. when was the telephone invented
D. if there are any good restaurants around here
Don’t ________too late, or you’ll be sleepy in class tomorrow.
A. put up B. stay up
C. take up D. get up
---I didn’t hear you come in just now.
--- That’s good. We tried ________ any noise, for you were sleeping.
A. not make B. not to make
C. to make D. Making
---The air pollution is terrible.
---It will be worse _______ we take action to protect the environment.
A. if B. unless
C. until D. When
