Bài 4: Điền "more" hoặc "less" để hoàn thành những câu sau: 1. Eat_______fruits and vegetables. 2. Stay outdoor and do_______exercises to be healthier. 3. Drink_______alcohol or you will be weak. 4. Sleep_______and don't go to bed too late. 5. Practice_______and you will improve your skills. 6. Spend_______time on smartphone and laptop or you will ruin your eyes. 7. Go out_______and make some new friends, so you won't be lonely. 8. Drink_______coffee. It's not good for your brain. 9. Read_______books to broaden your knowledge. 10. Play_______computer games and study_______ 11. Take_______vitamin A to strengthen your immune system. 12. Put_______wood into the campfire to keep warm 13. Smoke_______ or you will have lung cancer. 14. Eat_______raw food or you will have stomachache. 15. Spend_______time on TV and pay_______attention to your siblings. 16. Sunbathe_______if you don't want to have skin cancer. 17. Take_______ photos of this beautiful mountainous area. 18. Wear_______warm clothes or you'll be cold. 19. Put_______more effort in your work to achieve best result. 20. Watch_______documentaries about Nile River and write a report. giúp mk nha mn