My parents make me to cut down on waste and save energy every day.

• A. make 

• B. to cut 

• C. down on 

• D. save

I have stopped to use plastic bags when shopping at the supermarket and brought my reusable bags.

•        A. to use                      

•     B. when                       

• C. brought  

•     D. reusable bags

We must stop polluting the ocean by not dumping waste like plastic rubbish into it.

• A. making the soil in an area wet                               

     

•     B. making the soil in an area changed

        

• C. making an area impossible for human to live in

        

• D. making an area dirty with harmful things

This new strategy reaches those are the most vulnerable to the climate change.

•        A. This                           

• B. reaches                    

• C. those are

•                D. to

She wondered how those ships' carbon emissions affect the locals living nearby.

• wondered

• emissions

• affect

• nearby

Nam Cát Tiên National Park conserves many endangered animals and the plants.

• conserves

• endangered

• animals

• the

Our holiday in Vietnam was ___________than that in Myanmar.

• more good

• best

• gooder

• better

Fansipan is ____________ than any other mountain in Vietnam.

• the most high

• more high

• higher

• the highest

Mount Everest is by far the________ mountain on our planet. (HIGH)

The elderly generally want to _________  the fresh air in the countryside. (  BREATH)