请教OG-129

joywzy

129. In an effort to reduce their inventories, Italian vintners have cut prices; their wines have been priced to sell, and they are.

have been priced to sell, and they are
are priced to sell, and they have
are priced to sell, and they do
are being priced to sell, and have
had been priced to sell, and they have

答案:C,这题我虽然看了OG的解释,仍感到困惑.能否讲讲.谢谢.

siebel

... and they do (sell).

do+verb. 表强调。传达的句意是这样的：我说要考800，你看，考到了。记得在那本语法书里见过这种用法。

joywzy

哪本语法书中有介绍这种用法? 谢谢.

1stzhang

我觉得截题思路如下：
（1）划线开头结尾都是动词，从动词入手，明显后一个they后面不能用are,第一步只能扔a;
（2）由于是分号我们就不看前面的句子，开始比较选项；先看b/c发现b的逻辑意思不通，看c没有明显错误；再看d/e,d容易被扔。
（3）比较c/e，如果用e发现have说不通，所以选c

siebel

以下是引用joywzy在2003-4-14 10:15:00的发言：
哪本语法书中有介绍这种用法? 谢谢.

sorry. long long time ago. I cannot recall which book it is. However, after I learned the usage, I use it frequently. Maybe some others know more...