Exercise 1: Rewrite the sentences without changing their meaning 5. If you don’t stay at home , you’ll catch COVID → Unless…………………………………….……..…….…… 6. We can’t go to school because of COVID → Because there ……………………………………………..…… 7. If we wash our hands regularly we can prevent COVID. → Should ……………………………………….….…... 8. Ba got up late, so he was late for work → Because ………………………………………………...…… 9.We have to stay at home, but we are taught online with zoom. → Although ……………………………………………………...….. 10. Robert got a bad cough because he smoked cigarettes.( Therefore) →………………………………..….. 11. They were at the beach 2 months ago ( weren't) -> ………………………………………………………………………………….. 12. They usually played tennis when they were young. -> They used to …………………………………………………………………… 13. Hoa went home late yesterday (didn’t) →……………………………………………………………………………………….. 14. She cleaned the kitchen last Saturday ( didn’t) →……………………………………………………………………………………….. 15.We gave them some food and drink ( Did) -> …………………

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