你要知道对方有多少支蜡笔，要问：_______
A.How many crayon do you have?
B.How many crayons do you have?
( ) A teacher works in a ______.
A. schoolB. science museumC. post office
( ) Is your uncle here today？
A. Yes, it is.B. Yes, he is.C. Yes, he does.
( )_______ at a red light.
A. GoB. Stop and waitC. Slow down and stop
( )If you are ______, you should see a doctor.
A. illB. coldC. angry
( )My mother likes ______.
A. singing and dancing.B. sing and danceC. sing and dancing