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问个英语句型转换Ihavebeenskatingfortwohours.(改为一般疑问句)youfortwohours?Hehasbeenworkingsinceanhoursago(改为否定句)HesinceanhouragoHestartedplayingthepiano(sixyear

题目详情
问个英语句型转换
I have been skating for two hours.(改为一般疑问句)
____ you _____ _____ for two hours?
He has been working since an hours ago(改为否定句)
He ___ ___ ____ since an hour ago
He started playing the piano (six years ago)(对括号的部分提问)
_____ _____ he _____ playing the piano?
▼优质解答
答案和解析
Have been skating
hasn't been working
when did start