7.When to go to see the movie THE BABYSITTERS CLUB_________ yet.(  )
A.are not decidedB.was not decided
C.has not been decidedD.have not decided

分析 什么時(shí)候去看電影THE BABYSITTERS CLUB還沒(méi)有決定下來(lái).

解答 答案是C.考查被動(dòng)語(yǔ)態(tài),When to go to see the movie 在句中做的是主語(yǔ),謂語(yǔ)動(dòng)詞應(yīng)該用單數(shù),When to go to see the movie 指的是一件事,事情應(yīng)該是被決定,所以用被動(dòng)語(yǔ)態(tài),yet表示現(xiàn)在為止仍然,所以用現(xiàn)在完成時(shí)的被動(dòng)語(yǔ)態(tài),故答案選C.

點(diǎn)評(píng) 被動(dòng)語(yǔ)態(tài)由"助動(dòng)詞be+及物動(dòng)詞的過(guò)去分詞"構(gòu)成.被動(dòng)語(yǔ)態(tài)的時(shí)態(tài)變化只改變be的形式,過(guò)去分詞部分不變.疑問(wèn)式和否定式的變化也如此.掌握各種時(shí)態(tài)的被動(dòng)語(yǔ)態(tài)是解題的關(guān)鍵.

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