按要求完成句子。

(1)．You can't sing in the library. (改为祈使句)

________ ________ in the library.

(2)．She has to follow the school rules. (变一般疑问句)

________ she ________ to follow the school rules?

(3)．We must eat in the dining hall.(改为同义句)

We ________ ________ eat in the dining hall.

(4)．别对考试想得太多了。(完成译句)

Don't ________ too much ________ the test.

(5)．他们制定一些规定来帮助学生。(完成译句)

They ________ some rules ________ help students.