---We can use QQ to talk with each other on the Internet.
---Really? But can you tell me _______it.
A. how I can use B. how can I use C. why can I use D. when I can use
Now the air in Yancheng is than it used to be. Something must be done to stop it.
A. very good B. much better C. rather bad D.even worse
Miss Liu is English teacher. She teaches English very well.
A.us, we B. our, we C.we, us D.our, us
bad weather ! I can do something but to stay in bed for the whole day.
A. What a B. How a C.What D.How
---How long did it _____ you to work out the difficult maths problems?
---I ______ about half an hour on it .
A. take ; took B. spend ; took C. spend ; cost D. take ; spent
It is very _______ of you to speak in front of all those people .
A. polite B. honest C. funny D. brave
