66.______ I sympathize, I can't really do very much to help them out of the difficulties.

　 As long as

　 While

　 Even

正确答案：C

解析：

解析:语法结构。while这里引导让步状语从句。此句中这种让步从句可以使主句中所表达的拒绝变得较委婉,更容易让对方接受。另外可参考1999年第52题。尽管我对此很同情,但我确实不能做很多事情来帮助他们摆脱困境。

237.Which of the following tag questions is INCORRECT?

236.Please pardon _____________ you.

235.Which of the following italicized parts indicates a predicate-object relationship?

234.The boys in the family are old enough for ___________.

233.Which of the following sentences indicates POSSIBILITY?

232.Which of the following sentences is INCORRECT?

231.Which of the following italicized parts is used as an object complement?

230.Which of the following sentences expresses a future action?

229.It is essential that he __________ all the facts first.

228.The following are all dynamic verbs(动态动词)EXCEPT ______.