11. With his attention _C____on his studies, he didn’t notice I had left.(attention (on) doing sth.) 12. ----What made you upset? ----__C___. You know, I practiced a lot. (分词短语） 13. The invention of the computer is a great _D____, or else we wouldn’t now be living in the information age.（电脑的发明是大进步）35. 14.---- I w...
11.A独立主格关系问题 concertrate the. attention所以with the attention concertrated12.相当于对what提问，所以答语就是what的部分，所以应该是动名词做主语C13.D本题是词义辨析题，巨大的成就14.D懂四个选项的意思即可。D你不是认真的吧15.A a great many+可数名词复数，t...
