3 Rewrite the sentences using if and unless, as in the example. 1 If you don't revise early, you won't do well on your exams. ► Unless you revise early, you won't do well on your exams. 2 Unless she gets some rest, she won't be able to continue her work. 3 If Chris doesn't have a stomachache, he should go to school. 4 If we don't hurry, we will miss lunch.