at any time 是固定短語,"在任何時(shí)候/隨時(shí)",不能換成in.
因?yàn)閐o是及物動(dòng)詞,必須跟賓語,而how是副詞,不能作賓語,因此只能用what 來作賓語.
這種情況就可用how .
Do you know how to do the homework
An earthquake may hit some places at any time.Do you know what to do in an earthquake?為什么
An earthquake may hit some places at any time.Do you know what to do in an earthquake?為什么
用at和what?為什么不是in和how呢?
用at和what?為什么不是in和how呢?
英語人氣:951 ℃時(shí)間:2019-08-21 04:43:34
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