用括号内所给单词的适当形式完成句子。

1. The coastal areas have mild winters, but by contrast the ____ (center) plains

    become extremely cold.

2. Although our looks differ, we are both ____ (attract).

3. One of the main ____ (attract) of the job is the high salary.

4. Cambridge is always full of ____ (tourism)in the summer.

5. In front of the village runs a river 300 miles in ____ (long).

6. China's Cultural Theme Park offers its visitors a ____ (vary) of amusement.

7. Something ____ (fun) happened to him last night.

8. The aim of the policy is the ____ (preserve) of wildlife.

9. The girl sat on a swing, ____ (swing) back and forth.