问题标题:
look!LucyisplayingtabletenniswithLilyontheplaygroud.They____beLucyandLily.theyhavegonetoHangzhou.A.mustn'tB.mustC.can't
问题描述:
look!LucyisplayingtabletenniswithLilyontheplaygroud.They____beLucyandLily.theyhave
gonetoHangzhou.
A.mustn'tB.mustC.can't
刘玉坤回答:
Ccan't
look!LucyisplayingtabletenniswithLilyontheplaygroud.They(can't)beLucyandLily.theyhavegonetoHangzhou.
很肯定的否定猜测用:can't.
musn't意思是:禁止.不能选.
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