C)understand D)ignore
12.A. 短语put up with的基本含义为忍受， 因此A是答案。
复习中需要掌握的近义词词组：
put up with - bear tolerate - stand 忍受
accept agree to consent of approve 同意, 赞成
understand follow 理解
ignore avoid 不理睬
neglect omit overlook 忽视
复习中需要掌握的类似短语结构：
put up with 忍受
come up with想出， 提供
keep up with 跟上
13. Charges for local telephone calls are outrageous.
A) unheard of B) unacceptable
C) unbelievable D) ridiculous
13.B. outrageous的基本词义为残暴的， 令人不能接受的， 因此B是答案。
复习中需要掌握的近义词词组：
unbelievable incredible 难以置信的
14. Many economists have given in to the fatal lure of mathematics.
A) error B) function
C) attraction D) miracle
14.C. lure是单义词， 其基本词义为吸引， 因此C是答案。
复习中需要掌握的近义词词组：
error mistake 错误
miracle wonder 奇迹
attraction lure temptation 诱惑
15.In their productions, choreographers of modern dance have introduced humor, protested social injustice and probed psychological problems.
A)solved B) explored
C) involved D) disputed
15.B. probe的基本词义为探索，调查， 因此B是答案。
复习中需要掌握的近义词词组：
solve settle 解决
explore probe investigate research into 调查， 研究
involve include 包括， 涉及到
dispute argue debate 争论