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  • The boss (A) the worker how to operate the machine,or the accident couldn't have happened.

    The boss (A) the worker how to operate the machine,or the accident couldn't have happened.
    A can't have told
    B could have told
    請(qǐng)問:
    為什么不能選B,理解為本能夠告訴但沒告訴?
    英語人氣:239 ℃時(shí)間:2020-04-10 20:49:38
    優(yōu)質(zhì)解答
    事故已經(jīng)發(fā)生,說明不是虛擬,而是真實(shí)情況,不能用B
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