Ho Chi Minh City is the crowdest city in Vietnam

My theme is "Our Greener World". I think we can do a lot of conditions to improve the environment. Firstly, I won't litter the street instead, I collect the trash and throw it in the recycling bin. Secondly, I wil turn off the lights when don't used. Thirdly, I clean the house, the classroom. Finally, I will plant flowers and trees in my neighbourhood.

Lạ ghê ha!