Both his parents look sad. Maybe they _________what's happened to him.

题型：单选题题类：常考题难易度：普通

仁爱科普版九年级上Unit 1 The Changing WorldTopic 1 Our country has developed rapidly.专题练习：现在完成时

A、knew B、have known C、must know D、will know

举一反三

— Well, it wasn't me. I went shopping just now.

一 Because the team Miami Heat the first place for the last two seasons!

My uncle{#blank#}1{#/blank#}his hometown for quite a few years.

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