[例1]Books of this kind______well.
A.sell B.sells C.are sold D.is sold
【解析】答案A。这种书很畅销。“sell”主动形式表示被动。“books”名词复数谓语动词应为复数。
[例2]My watch wants______.
A.to repair B.being repaired C.repaired D.repairing
【解析】答案D。我的表需要修修。“want”后可用动词的-ing形式表示被动。
[例3]The book is difficult______.
A.understanding B.to be understood
C.to understand D.understood
【解析】答案C。在某些性质形容词＋动词不定式的句型中，其动词不定式的主动形式表示被动意义。
[例4]The cloth______well and______long.
A.washes；lasts B.is washed；lasted
C.washes；is lasted D.is washing；lasting
【解析】答案A。这布料耐洗又耐用。某些不及物动词表示被动意义，如open，pick，read，sell，shut，tear，wash，wear，carry，cut，write，drive，iron，keep，lock等等，形式上虽为主动，却表示被动意义。
[例5]Only one of the books______.
A.is worthy to read B.is worthy reading
C.is worth of reading D.is worth reading
【解析】答案D。只有一本书值得读。“worth”后用动词的-ing形式，以主动表示被动。
[例6]I’ll go to downtown.Do you have any letter______？
A.of posting B.to post C.posted D.posting
【解析】答案B。我要去市区。你有没有信要寄？动词不定式表示被动。
[例7]On the wall______two large portraits.
A.hangs B.hang C.is hung D.are hung
【解析】答案B。墙上挂着两幅大的肖像画。“hang”挂着，主动形式表被动。表示地点的状语放句首，句子用全倒装。主语是“two large portraits”名词复数，谓语动词应为复数。
[例8]Our house______.
A.is getting paint B.is getting painted
C.is got painted D.has got to paint