1.wasn't是be動(dòng)詞isn't的過(guò)去時(shí),用于過(guò)去進(jìn)行時(shí).
如：1.he wasn't at home yesterday.
2.I wasn't doing my homework yesterday,I was reading books.
2.didn't是“do" "does"的過(guò)去時(shí),用于過(guò)去現(xiàn)在時(shí).
如：1.I didn't go to the library last week.
2.he didn't take a shower until his mother came back.
3.isn't是一般現(xiàn)在式,后面一般加動(dòng)詞--ing形式
如：1.he is dancing in the gym
2.is she playing football on the playground?
wasn't didn't isn't的用法 各舉兩個(gè)例子
wasn't didn't isn't的用法 各舉兩個(gè)例子
英語(yǔ)人氣：869 ℃時(shí)間：2019-12-23 05:37:58
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