1、Betty does her homewoork at home .(改为否定句） Betty __doesn't__ _do___ her homework at home
2、The students are cleaning the room .(对画线部分提问）
__What__are the students _doing___?
3、I sit on Jim's right and on John's left .(改为同义句）
I sit _between__ Jim _and__ John.
用所给单词的适当形式填空：
1、Now they _are listening___(listen) to the radio.
2、My mother asks me _to open__(open) the door .
3、Jim's parents _don't watch___(not watch) TV on Sundays .
4、Thank you for _helping__(help) me .