Đáp án `+` Giải thích các bước giải:

`-` So sánh bằng

`+``S_1` + be + (not) + as + adj + as + `S_2`

`-` So sánh hơn (Tính từ ngắn)

`+` S + be + adj + -er + than + ..

`-` So sánh hơn (Tính từ dài)

`+` S + be + more + adj + than + ..

`---`

`1.` Her mobilephone is more expensive than my motorbike.

`2.` His sisters are shorter than his brothers.

`3.` That eraser is bigger than this eraser.

`4.` Their mother is fatter than their father.

`5.` Our cars are more beautiful than their cars.

`6.` Minh is lazier than Tuan.

`7.` Lan's brother is thinner than her father.

`----------`

`\star` Passive Voice (Câu bị động)

`-` Tương lai đơn

`+` S + will + be + V3/ed

`-` Modal verbs 

`+` S + modal verbs + be + V3/ed

`---`

`8.` A car could be driven by my uncle last year.

`9.` Her aunt will be met at the airport by Lan next Sunday.

`10.` A lot of exercises must be done at school everyday.

`11.` That box can't be carried by my younger brother.

`12.` Will a new school be built in the village next month?

`13.` Meat won't be eaten for dinner.

`---------`

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$\color{orange}{\text{Chúc bạn học tốt ạ :33}}$

So sánh hơn của ADJ/ADV ngắn 
S + be/V + ADJ/ADV + ER + than ……
So sánh hơn của ADJ/ADV dài 
S + be/V + more + ADJ/ADV + than ……

So sánh bằng: S + be + as + ADJ + as + ....

ADJ dài là từ có 2 âm tiết trở lên 
ADJ ngắn là từ có 1 hoặc 2 âm tiết tận cùng là - er, -ow, - y 
- Tận cùng là y → đổi -y thành - i và thêm ER 
- Tận cùng là e → thêm R  
- Phụ + nguyên + phụ âm → ta gấp đôi phụ âm cuối → và thêm ER

ADJ + ly --> ADV dài

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Bị động - các thì:

- S + could be + V3/ed 

- Thì TLĐ: S + will be + V3/ed 

- S + must be + V3/ed 

- S + can be + V3/ed 

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1. Her mobile phone is more expensive than my motorbike.

2. His sisters are shorter than his brothers.

3. That eraser is bigger than this one.

4. Their mother is fatter than their father.

5. Our cars are more beautiful than their cars.

6. Minh is lazier than Tuan.

7. La's brother is thinner than Lan's father.

8. A car could be driven by my uncle last year.

9. Her aunt will be met at the airport by Lan next Sunday.

10. A lot of exercises must be done at school every day.

11. That box can't be carried by my younger brother.

12. Will a new school be built in the village next month?

13. Meat won't be eaten for dinner.

`color{orange}{~LeAiFuRuiHuiBao~}`