The boys like to listen to music when they do ______ (they) homework.
their
暂无解析
Theman_______thephotoismyfather.
Thechildrenhavesomeapples.(改为单数句子)
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Thecoat_____thewallisn'tKate's.It's______.
Lookatthesign.Thelibraryis_____(close)from1:00p.mto2:00p.m.
many，minutes，hour，there，how，are，in，an
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