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Books will only be on computers,not on paper. (改为疑问句作肯否定回答)
一般疑问句:Will books only be on computers, not on paper?
肯定回答:Yes, they will.
否定回答:No, they won't.
People will live to be 200 years old. (同上)
一般疑问句:Will people live to be 200 years old?
肯定回答:Yes, they will.
否定回答:No, they won't.
There will be only one country. (同上)
一般疑问句:Will there be only one country?
肯定回答:Yes,there will.
否定回答:No, there won't.