1、過去式用did,過去進(jìn)行時(shí)用was/were doing
2、A
3、A
4、were doing
5、were doing
這里需要注意when\while的區(qū)別.
1.過去進(jìn)行時(shí)如何分辨did與was/were doing?
1.過去進(jìn)行時(shí)如何分辨did與was/were doing?
2.單選：I _______ when he arrived.
A was shopping B shopped C shopping D shops
3.單選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.單選：I _______ when he arrived.
A was shopping B shopped C shopping D shops
3.單選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?
其他人氣：234 ℃時(shí)間：2019-10-19 05:25:20
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