【題目】— Your classroom is very clean.— Yes, it ______ every day.

A.cleansB.is cleanedC.is cleaningD.was cleaned

【答案】B

【解析】

句意：——你們的教室非常干凈。——是的，每天都要打掃。

A.cleans一般現(xiàn)在時(shí)的單三形式；B.is cleaned一般現(xiàn)在時(shí)被動(dòng)語態(tài)；C.is cleaning現(xiàn)在進(jìn)行時(shí)，主動(dòng)語態(tài)； D.was cleaned一般過去時(shí)被動(dòng)語態(tài)。根據(jù)句意可知，教室干凈是因?yàn)槊刻於急淮驋�。教室�?/span>“被打掃”，所以要用被動(dòng)語態(tài) be done 的結(jié)構(gòu)，結(jié)合句中時(shí)間狀語 every day 可知，打掃是現(xiàn)在經(jīng)常性或習(xí)慣性的動(dòng)作，故應(yīng)用一般現(xiàn)在時(shí)。因此 is cleaned，所以選擇B。

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