问题标题:
Whatfunitis和Howfunitis后面加doing还是todo
问题描述:
Whatfunitis和Howfunitis后面加doing还是todo
路平立回答:
Itisfundoingsth
eg:Itisgreatfunplayingwithhim
路平立回答:
itisfundoinghowfunitisdoingwhatfunitistodoOh,whatfunitistorideWhatfunitistoplaywithsnowinwinter
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