25 балів
Rewrite the sentences. Use if or unless.

1 If Sam doesn't start saving, he won't be able to go on holiday.

► Unless Sam starts saving, he won't be able to go on holiday.

2 Unless we leave now, we will be late.

3 If Ron doesn't come soon, we will leave without him.

4 Unless I tidy my room, my parents will be angry.

5 If she doesn't study hard, she won't pass her exams

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