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Câu 1. If we __________ the window yesterday, it __________ so cold in here.
Câu 2. If the lady __________ the boy, he _________ into the van.
Câu 3. The dog ________ you if you ________ teased him.
Câu 4. If they __________ a new tent, they__________ wet during the night.
Câu 5. The computer __________ so often if __________ it.
Câu 6. If she __________ me, I __________ her from the airport.
Câu 7. Your friends __________ at you if you __________ your hair.
Câu 8. If the men __________ the batteries, they 999 enough power for their laptops.
Câu 9. He ________ the plane if he __________.
Câu 10. If you ____________ down the volume of your stereo, the neighbours would not have complained.