He asked me whether I could help him.这里为什么用could

白皮墙 1年前已收到2个回答举报

共回答了25个问题采纳率：68% 举报

从句部分中用 could是因为主句部分的谓语asked是一般过去时.这叫做时态的一致性.1 He asked me whether I could help him2 He has asked me / asks me / is asking me / will ask me whether I can help him....

1年前追问

白皮墙举报

I realized that it does not matter
这句话为什么从句中是does？

举报你可记得我

除非有特殊的语境，应该是 it didn't matter.

xf_681977 幼苗

共回答了2个问题举报

can的过去式,表能够，由于asked

1年前

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你能帮帮他们吗

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