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1. Lan is the most intelligent student in my class

`=>` So sánh nhất ( tính từ dài )

`=>` Cấu trúc: S + be + the most + adj/adv + ..... 

2.  Minh spends 2 hours to do his homework everyday

`=>`  Spend + time/money + V_ing  = dành tiền hoặc thời gian để làm gì

3. The girl who lived next door to us is very friendly.

`=>` Dùng mệnh đề quan hệ  "who" để thay thế chủ ngữ

4. Because of his bad behavior he was punished .

`=>` Because of + N / N phrases/ Ving + S + ....