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She spent half an hour piaying the piano改成保持句意不变

题目详情
She spent half an hour piaying the piano改成保持句意不变
▼优质解答
答案和解析
1.It took her half an hour to play the piano.
2.She spent half an hour on the piano.
3.What took her half an hour was playing the piano.
4.Playing the piano costed her half an hour.
5.She was playing the piano for half an hour.