题目内容：

完成句子，根据中文提示，完成句子。（10分）

1.I think that Yang Liwei and Liu Xiang are both our country’s _______ (英雄).

2.We should exercise to _______ us _______ (增强体质).

3.Driving carelessly _______ (引起) accidents.

4.The rivers in the countryside are much _______ (清澈) than those in the cities.

5.Beijing Opera              (充满) famous stories ,beautiful facial paitings, wonderful gestures and fighting.