GMAT语法补充资料; No.192 Trying to learn some of the basis of programming is (the same as to tinker with a car when one is a teenager): some people end up to going to engineering school, and others, twenty years later, remember nothing of the experience. A. the same as to tinker with a car when one is a teenager B. similar to a teenager tinkering with a car C. like tinkering with a car as a teenager D. the same as a teenager tinkering with a car E. like the teenager's tinkering with a car
The answer is A. while i choose B. What is the error in B?为什么不是Trying to do ...is doing sth? No. 191 (A substance derived from the Madagascar periwinkle, which has proved useful in decreasing mortality among young leukemia patients,) is cultivated in China as part of a program to integrate traditional herbal medicine into a comtemporary system of health care. A. A substance derived from the Madagascar periwinkle, which has proved useful in decreasing mortality among young leukemia patients, B. A derivative, which has proved useful in decreasing mortality among young leukemia patients, of the Madagascar periwinkle C. A Madagascar priwinkle derivative, which has proved useful in decreasing mortality among young leukemia patients D. The Madagascar periwinkle has a derivative which has proved useful in decreasing mortality among young leukemia patients, that E. The Madagascar periwinkle, a derivative of which has proved useful in decreasing mortality among young leukemia patients. Anwser: E. 终于打完了,这个题看得我真是晕啊!改错部分后面的句子的主语难道不是A substance吗?选项E不是改变了原句的主语吗? 请高手指点