they are( looking for her bag).对括号里进行提问 my mum cleans the room every day.(变否定句）
i am( mending my bike )now.对括号里进行提问
there are (twelve) studens in the classroom.对括号里进行提问
it's (ten o'clock).对括号里进行提问
this is( Mary's) watch.对括号里进行提问
人气：472 ℃ 时间：2020-01-27 17:02:35
解答
1）what are they doing?
2) my mum doesn't clean the room every day.
3)what are you doing now?
4)how many students are there in the classroom?
5)what time is it now?或者when is it now?
6)whose watch is it?
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