chỉ eh vs ạ nhanh bây h đc hong eh đag gấp lắm ạ

1. Why do many children like cartoons?

Because they are funny: bởi vì nó vui nhộn --> câu hỏi tại sao 

WH + do/does + S+ V1?

2. Fansipan is the highest mountain in Viet Nam.

S + be + the + ADJ ngắn + EST .. : so sánh nhất của ADJ ngắn 

3. If we pollute the air, we will have breathing problems.

If loại 1: If + S + V1/s/es, S + will + V1 

4. Because Lan was sick, she didn't go to school. 

hoặc 

Lan didn't go to school because she was sick.

Because + S+ V+ O, S + V+O: bởi vì 

S + was/were (thì QKĐ - V : to be)

S + didn't + V1 (thì QKĐ: V: thường - câu phủ định)
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