OG92

92. Never before had taxpayers confronted so many

changes at once as they had in the Tax Reform Act of 1986.

(A)  so many changes at once as they had in

(B)  at once as many changes as

(C)  at once as many changes that there were with

(D)  as many changes at once as they confronted in

(E)   so many changes at once that confronted them in

D中改为as they did in the Tax Reform Act of 1986行吗？

应该可以吧，前后动词一直吗！个人愚见

我觉得可以的a

个人认为不妥

如果前后时态一致,前面用had confronted后面补出had

或前用confronted后用did比较合适

但又说不出什么理由

请nn讲一下这中间有什么语法规则

这里是另一贴中古镯姐姐的解答,可以解决我的问题,贴过来,那家资源共享哈

我的问题是关于比较形式后补出的动词的.
1.        为什么不能把A理解为so many changes at once as (the changes)they had(过去时, 而非过去完成时) in 1986.
2.        在比较结构中, 补出的动词或助动词应该如何判别??以什么为标准呢??
例如本题的正确答案就补出了原动词, confronted.
在对付本题的过程中, 我就把had理解为了have的过去时, 而不是过去完成时.

1. A: so many changes at once as (the changes)they had (confronted) in 1986.

比较，是实意动词的比较，这里必须补出comfronted，这里从逻辑和in1986上判断，是过去从未有的一个事件和过去一个事件的比较，即过去完成时态和过去时比较，所以A是错误的

2.在比较结构中，但谓语（内容）一致的时候，比较两个主语时，在比较词（than/as等)后，要尽量补出谓语动词，其原则为：

（1）当比较词之前的谓语动词为一般现在时或一般过去时，比较词后应该相应的用do/does/did/is/was/were/are来替代；

（2）当比较词之前的谓语动词由助动词（情态动词）+主要动词组成，则在比较词之后保留此助动词（情态动词）即可；

（3）比较前后的时态不一致：两个比较对象的动作是相同的，但是其发生的时间却不一致

             a.比较前是过去时，其后的时间状语暗示了将来的动作，补出助动词will

             b.比较前是过去时，其后是过去完成时，补出had

分析本题，前为过去完成时，后为过去时，如果只是补出had，如（3）b.所言，则是过去完成时和过去完成时的比较，则与in 1986明显冲突，应该用过去时，直接补出动词的过去时态即可！

在11thOG 81，10thOG129中

OG解释单独补出时态不对，要把动词一起补出。

这样我又糊涂了，到底应该怎么补出。

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

(A)  have been priced to sell, and they are

(B)  are priced to sell, and they have

(C)  are priced to sell, and they do

(D)  are being priced to sell, and have

(E)   had been priced to sell, and they have

In choice C, the best answer, do is correctly used in place of the full verb do sell; in this verb, do is a conjugated form and sell is in the infinitive form, corresponding to its previous use in the sentence (in the phrase priced to sell). In choice A, the omitted word is selling; in B, D, and E, it is sold. Neither of these forms corresponds properly to to sell earlier in the sentence. Also, in E, the past perfect had been priced signifies that the wines had been priced to sell before the prices were cut.

这里ＥＴＳ强调的是对应关系．ＢＤＥ补出动词后并不能和前面的priced to sell很好的对应．只有c可以．

个人拙见．大家更正