选择：
（ ）The boys _____Japan.
A.comes from B.is from C.are come from D.come from
（ ）What did he help you _____?
A.did B.do C.doed D.done
改句子：
They take (good) care of the baby.划线部分提问
_____ _____ they take care of the baby?
We should be kind to dogs.改为一般疑问句
_____ you _____ be kind to dogs?
Dogs help the police (catch thieves).划线部分提问
_____ _____ dogs help the police _____
打括号里的是划线的部分!