4 . During the Tang Dynasty, around 850 A.D., an enterprising alchemist created a mixture, which had no obvious effects on lengthening life, but did explode with a flash and a bang when ________ (expose)to an open flame.（所给词的适当形式填空）

6 . The game of weiqi can date back to 4000 years ago. There are mentions of a similar game ________ (call) yì made by Confucius and Mencius but it is not certain that it is the same game. (所给词的适当形式填空)

7 . ________(compare) with most biopic (传记片) productions that tend to document the whole life of the featured individual, this series focuses specifically on the individuals’ most shining moments. （所给词的适当形式填空）

8 . You’ve probably heard that most Canadians want governments to do more on climate. That’s what two-thirds of the public tell pollsters when ________ (ask). （所给词的适当形式填空）

9 . 选择适当的短语并用正确的形式补全句子，使句子完整。（其中有2项是多余的）

make up       deal with        apply to        get around       catch sight of        fall apart       keep track of

1. The team _________of some experts and teachers is coming to visit the city.
2. We _________the beautiful historic building the moment we entered the campus.
3. Taking part in sports events is not always easy, so it helps children learn how to _________ stress.
4. Diana had a workable plan to pay for college for her twins, but then her husband became unemployed, and the plan _________.
5. The old rule has to be revised as it only _________the situations that existed a hundred years ago.