根据要求变化下列各句
Lucy goes to school by train every day.（对画线部分提问）
_____ ___ Lucy ____ to school every day?
My parents are doing cleaning now. （用Tom做主语改写）
Tom _____ _____ _____ now.
Why don’t you come earlier? （同义句）
_____ ____ come early?
There’re two ships on the river. （对画线部分提问）
_____ ____ ships are there on the river?
---_____ ____ does it take by ship? （根据答句填空）
---It takes three hours.
The boy does some cleaning in the evening. （一般疑问句）
____ the boy ____ ____ cleaning in the evening?
You mustn’t talk in class. （祈使句）
____ ____ in class.
Are you from China? （作否定回答）
_____, _____ _____.