Mary often studies English by _______ with a group.A.workingB.workC.to workD.worked-九年级英语

题目简介

Mary often studies English by _______ with a group.A.workingB.workC.to workD.worked-九年级英语

题目详情

Mary often studies English by _______ with a group.
A.workingB.workC.to workD.worked
题型:单选题难度:中档来源:不详

答案

A
因为by为介词,后接动词ing 形式,故选A

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