2．如果你有什么烦恼，你可以向老师或父母征求意见。

If you have some trouble，you may _________ the teachers or your parents ________ advice．

1．他宁愿呆在家里看书也不愿出去和朋友野餐。

He _________ _________ stay at home to read a book _________ _________ a picric with his friends outdoors．

15．The teacher enlarged the picture on the screen to make it _________(see)clearly by all the students．

14．We study hard in order to get a higher _________(educate)．

13．Edison had many _________(invent)in this life．

12．Boys and girls，you must pay attention to the traffic _________(safe)．

11．The river _________ (pollute)badly．There are no living things in it．

10．All the students are out on the playground for their PE．The classroom is now e _________．

C．根据句意，用所给词的适当形式完成句子：

9．We all should work hard to t_________ our country into a big one．

8．Thank you for the p________ trip to Beijing．Well never forget the kind people and nice thing we met．