A balloon as it is filled with air.A.is increasedB.increasesC.expand
题型:不详难度:来源:
A balloon as it is filled with air.A.is increased | B.increases | C.expands | D.is expanded |
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答案
C |
解析
句意:气球灌入空气就会鼓起。expand扩展,鼓起,膨胀,被动语态不合适,故选C。 |
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