Since you are tired, you’d better___and have a good rest.A. stop to study B. stop study C. stop studying
---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.
---Could you please tell me________________? ---Yes. There is one on Center Street.
Don’t ________too late, or you’ll be sleepy in class tomorrow.
---I didn’t hear you come in just now. --- That’s good. We tried ________ any noise, for you were sleeping.
---The air pollution is terrible. ---It will be worse _______ we take action to protect the environment.