1.-I'm sorry to have kept you waiting so long.
1个回答
1.A have been才能表示状态的延续 come和arrive都是瞬间动词
2.B 在间接引语中,疑问句要用陈述句语序
相关问题
I'm sorry to have kept you waiting so long 和i' m sorry to ke
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英语语法问题I'm sorry to have kept you waiting和I'm sorry to have k
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i am sorry to have kept you waiting.
l'm sorry to have kept you waiting.
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