It is _____ to cycle around Guilin.
The teacher made him _________ his homework.A. to do B. did C. do
---I have finished my homework ,let’s watch the program I AM A SINGER on Hunan TV.---_________.
---We can use QQ to talk with each other on the Internet.---Really? But can you tell me _______it.
Now the air in Yancheng is _______ than it used to be . Something must be done to stop it .
Miss Liu is _________ English teacher. She teaches _______ English very well.