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  • ket的語(yǔ)法:could you please open the door

    1. 過(guò)去進(jìn)行時(shí) 用來(lái)談?wù)撨^(guò)去某一時(shí)間正在發(fā)生的事情。 I was playing football at 3:30 yesterday. 用來(lái)討論過(guò)去某一時(shí)間同時(shí)發(fā)生的兩件事 He was doing homework while his sister was watching TV. 過(guò)去的情況和過(guò)去的情況發(fā)生在同一句

  • ket核心語(yǔ)法:could you please open the door

    1. 過(guò)去進(jìn)行時(shí) 談?wù)撨^(guò)去某個(gè)時(shí)候正在發(fā)生的事情 I was playing football at 3:30 yesterday. 談?wù)撨^(guò)去同時(shí)發(fā)生的兩件事 He was doing homework while his sister was watching TV. 過(guò)去進(jìn)行時(shí)和一般過(guò)去時(shí)出現(xiàn)在同一個(gè)句子中:

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