完成句子。

1. ______ ______ ______ ______ the city (所有通往城市的路) are guarded by the police.

2. There are ______ ______ ______ ______（各种各样的小汽车）to choose from.

3. 每件事都提前安排好了。 

    Everything ______ ______ arranged (安排) ______ ______.

4. 这座新桥将会把这个岛屿和大陆连接起来。 

    The new bridge will ______ ______ ______ ______ the mainland.

5. The teacher is popular with the students because he ______ ______ ______ ______ (对他们要求严格).

简述心理健康的标准。