2014
高考英语一轮训练：人教版必修2 unit 3（3）及答案 unit 3 computers3人教版必修2 一．单项选择 1. __________the explanation of the book, we tan finally understand the meaning of the passage. a. with the help of b. under the help of c. after the help of d. by the help of 2. trees of this kind are so __________ that they can been seen everywhere.
