—Jane, have you finished yourpaper?—No, Imy sister with her homework all the morning.A.helpB.have be

题目简介

—Jane, have you finished yourpaper?—No, Imy sister with her homework all the morning.A.helpB.have be

题目详情

—Jane, have you finished yourpaper?     
—No, I      my sister with her homework all the morning.
A.helpB.have been helpingC.helped D.was helping
题型:单选题难度:中档来源:不详

答案

B
考查时态。根据句意及时间状语all the morning可知,我一直在帮助,故用现在完成进行时,选B。

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