这2句话怎么改例句 he is sitting in an armchair问一:is he sitting in an
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1 there is a newpaper on the desk

q:is there a newpaper on the desk?

q:what is on the desk?

回答:there isn't a newpaper on the desk.

2 he is going to come now

q:is he going to come now?

q:when is going to come?

回答:he isn't going to come now

3 they like ice cream

q:do they like ice cream?

q:what do they like?

回答:they don't like ice cream.

4 he cleaned his shoes.

q:did he clean his shoes?

q:when did he clean his shoes?

回答:he didn't clean his shoes.