把第二個have改成had.
這個是在考復合句的時態(tài),因為當你收到哥哥的來信時已經(jīng)是發(fā)生在過去
when have you heard from your
when have you heard from your
改錯
改錯
when have you heard from your brother
have they alrady begun the new service
改錯
改錯
when have you heard from your brother
have they alrady begun the new service
英語人氣：908 ℃時間：2020-03-20 22:53:24
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