The following sentences are badly constructed. Rewrite them in better style and correct any grammatical errors.

All students must pay their fees, except foreigners, to the university bursar.

Let me tell you what I think you should do. (advice)

This matter is so complicated that we don't know how to deal with it.

So .............................................................................................................................................................................................. .

"Why don't you leave now. That's what I'd do."

If ............................................................................................................................... .

Penny took three exams and managed to succeed them all.

Items of luggage whose weight exceed 50 kilograms will not be allowed on the ferry.

The numbers of cars on the roads must be reduced. (down)

For each of the sentences below, write a new sentence as similar as possible in meaning to the original sentence, but using the word given. This word must not be altered in any way.