Ⅰ. 单句语法填空
1. Chinese astronaut Yang Liwei said that he had heard a mysterious(mystery)knock during his flight in space.
2. The teacher asked us to read the text a second time to find the topic of the text.
3. Several fishermen are said to have been attacked (attack)by sharks while fishing last month.
4. I was frightened (frighten)whenever I heard a frightening (frighten)story.
5. The custom of arranged marriages still exists (exist) in many parts of China.
6. The efforts made by the Tanzania National Park Authority seem to be paid (pay) off.
7. Mount Tai, which covers an area of 426 square kilometers, is the first of China’s Five Mountains.
8. The government, which promises to cut taxes, will be popular.
