400
Rewrite the sentences so that they mean the same as the original sentences.
- You won't pass your exam if you don't study hard.
(Unless ____________________________________.)
- I will pay you extra, but you have to do this project on time.
(Provided ___________________________________.)
Unless you study hard, you won't pass your exam. /
Provided (that) you you do this project on time, I will pay you extra.