句中。 結(jié)構(gòu):was/were+d"/>
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過去進(jìn)行時(shí)
——表示過去正在進(jìn)行的動(dòng)作,經(jīng)常用在when, while, as 引導(dǎo)的狀語(yǔ)從
句中。
結(jié)構(gòu):was/were+doing
When my husband was going into the dining room this morning , he
dropped some coins on the floor.
Their father was watching TV while they were having dinner.
★變疑問句將be動(dòng)詞移到句首Was their father watching TV while they
were having dinner.
★變否定句在be動(dòng)詞后面加 not Their father was not watching TV while
they were having dinner.
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