单项选择 适中0.65 引用4 组卷884
--- What’s Joan doing?
--- _________ newspapers in the room.
--- _________ newspapers in the room.
A.She reading | B.She reads | C.To read | D.Reading |
12-13高二上·甘肃武威·阶段练习
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Unless metals are polished frequently, they rust when __________ (expose) to air.
A.being exposed | B.exposed | C.exposing | D.to be exposed |
There are some health problems that, when ______ in time, can become bigger ones later on.
A.not treated | B.not being treated | C.not to be treated | D.not having treated |
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