题目
Tommy has been playig chess with his friend for 3 hours.该否定和疑问
提问时间：2021-04-04
答案
否定句 Tommy has not been playig chess with his friend for 3 hours.
疑问句 Has Tommy been playig chess with his friend for 3 hours?
疑问句 Has Tommy been playig chess with his friend for 3 hours?
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