Once we get down to things,not only can we do them well but also we can find new ways them.

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• Once we get down to things,not only can we do them well but also we can find new ways them.选项在这里.A.doing,doing B.do,do C.doing,to do D.do doing要考试了.
• Once we get down to things,not only can we do them well but also we can find new ways them.
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