题目内容：

根据首字母和已给出的中文，写出所缺单词的正确形式，每空填一个词。

1.Certain drugs which are safe when taken separately are lethal (致命的) in c_________ (混合)

2.The Nobel Prize winner owed his success to his parents’ e_________ (鼓励).

3.I have a big family to support, so I need a p_________ (长久的) job.

4.The man was in a hurry; unfortunately, he was caught in a t_________ (交通) jam.

5.As a proverb goes, there is no rule without e_________ (例外).

6.The students have been active p_________ (参与者) in the discussion in their classes.

7.It is o_________ (显而易见的) that students in Shenzhen Senior High School are making

great progress in their academic achievements.

8.We have to be r_________ (现实主义的) about our chances of winning.

9.The heavyweight champion is fighting an unknown c_________ (对手).

10.The history teacher gave us a lecture on a_________ (古代) Greece.

11.Tom p_________ (假装) to be asleep when his mother called him.

12.Can you name all the seven c_________ (洲) in the world?

13.The Chinese government spares no effort to get rid of p_________ (贫穷) throughout the country.

14.An unhappy home e_________ (环境) can affect a child’s behaviour.

15.The book gives s_________ (具体的) instructions on how to start a business on the Internet.

16.This bus is c________ (连接) to electric wires.

17.I’ll be very glad to accept i_________ (邀请) to your party.

18.A well-balanced student should like both intellectual things and a_________ (田径运动).

19.Nowadays more and more college graduates go to work in m_________ (多山的) areas.

20.May I have your attention please? I have an a_________ (声明) to make.