Write a letter about  150 – 200 words to a pen friend to tell about some activities you did to help your neighbourhood greener and cleaner . You should base on the suggestions below.

·       Where is your neighbourhood? (in the city, near a city, in the country, in the mountain, etc.)

·       What environmental problem you can see in your neighbourhood? (littering, pollution, etc.)

·       What did you do to help your neighbourhood greener and cleaner ?

·       How do you feef about those activities 

(viết khoảng cỡ 155 đến 175 words là đủ rồi :)

Đặt 2 câu có sử dụng thành ngữ "Đẽo cày giữa đường", "Tre già măng mọc"

Biết 4 lít dầu cân nặng 3,42kg. Vậy 8 lít dầu cân nặng hơn là: ..............................