4. If you use robots to do the housework, you (become)…………………….. lazy and you (not get) …………….…….. enough exercise. 5. If people travel to work by bus, there (be) …………………….. fewer car fumes. 6. We’ll need (call)…………………….. him more often 7. This time next week , I (lie)………………….………… on the beach on Phu Quoc Island 8. The river would be cleaner if we (stop) ………………..throwing garbage into it. 9. Since used bottles (recycle) ……………………. , the amount of garbage is reduced . 10. If the trees(be not)……………………….watered daily, they will die. 11. Air pollution (be) ……………… not good for our health. 12. Many houses ( destroy)………………………in the hurricane last night in Nghe An. 13. If the students reviewed all lessons, they (do)……………..…………..the test well. 14. After the thief (leave)…………………….the house, the police (come)…………..………….. 15. He ( not go )……………….. out last night, he ( stay )……………………….. at home. Giúp mình nha