1.过去进行时如何分辨did与was/were doing?
1.过去进行时如何分辨did与was/were doing?
2.单选：I _______ when he arrived.
A was shopping B shopped C shopping D shops
3.单选I ____ while he was playing the piano.
A was shopping B shopped C shopping D shops
4.填空what ______ you ____ when he arrived?
5.填空what_______you_______while he was shopping?
2.单选：I _______ when he arrived.
A was shopping B shopped C shopping D shops
3.单选I ____ while he was playing the piano.
A was shopping B shopped C shopping D shops
4.填空what ______ you ____ when he arrived?
5.填空what_______you_______while he was shopping?
赞 chijiaonanzi 幼苗
共回答了13个问题采纳率：92.3% 举报
1、过去式用did,过去进行时用was/were doing
2、A
3、A
4、were doing
5、were doing
这里需要注意whenwhile的区别.
2、A
3、A
4、were doing
5、were doing
这里需要注意whenwhile的区别.
1年前
7
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你能帮帮他们吗