=> 9. What did she play in the school yard yesterday? 11. Please. Don't make noise . ( Làm ơn. Đừng làm ồn ) 12. Khoa is the most intelligent student in our class. ( so sánh nhất : the most + adj) 13. If we don't use the car all the time, we will make the air dirty. ( câu điều kiện loại 1 : S + V..., S + will V) 14. This is the first time Nam has been to the stadium for a football match. ( this is the first time + HTHT)
