同學(xué),
must have working hard這個(gè)說(shuō)法是錯(cuò)誤的,must have been working hard是一個(gè)過(guò)去完成進(jìn)行時(shí),指猜測(cè)某人一定在努力工作,這個(gè)狀態(tài)已經(jīng)進(jìn)行了很久并將延續(xù)下去.原題： Amy did best in the English test. She __________ hard last week.A. must have working B. should have worked C. should work D. must work嗯，選B.A選項(xiàng)本身結(jié)構(gòu)錯(cuò)誤，所以不選。B選項(xiàng)should +have done情態(tài)動(dòng)詞表推測(cè)C、不能表達(dá)推測(cè)的意思D、太絕對(duì)，本來(lái)是推測(cè)他上周努力工作了。
must have working hard與must have been working hard的區(qū)別
must have working hard與must have been working hard的區(qū)別
英語(yǔ)人氣：980 ℃時(shí)間：2020-03-29 12:39:21
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