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Is he dancing? No, he isn’t dancing. He is playing ping-pong.
Are they dancing?
No, they aren’t. They are singing.
What are they doing ? They are having lunch.
What is she doing? She is playing the guitar.
A few students are playing basketball.
What is Miss Hua doing?
We are having a lesson.
He isn’t dancing.
Is she drawing a picture?
Yes, she is.
No, they aren’t.
特殊疑问句：疑问词+be+主语+doing?
肯定句式：主语+be+doing+其它.
否定句式：主语+be+not +doing+其它.
一般疑问句：Be +主语+doing+其它?
肯定回答：Yes, 主+Be .
否定回答：No, 主+Be+not.
Look at the pictures and describe what the students are doing.
2:00
1:59
1:58
1:57
1:56
1:55
1:54
1:53
1:52
1:51
1:50