來(lái)源:網(wǎng)絡(luò)資源 2023-02-18 19:39:59
二、 過(guò)去進(jìn)行時(shí)可以表示在過(guò)去某個(gè)時(shí)間點(diǎn)發(fā)生的事情。時(shí)間點(diǎn)可以用介詞短語(yǔ)、副詞或從句來(lái)表示。
What was she doing at nine o'clock yesterday?昨天晚上九點(diǎn)她在做什么?(介詞短語(yǔ)表示時(shí)間點(diǎn))When I saw him he was decorating his room.
當(dāng)我看見他的時(shí)候他正在裝飾房間。(when從句表示時(shí)間點(diǎn))
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