Câu hỏi: Use water sparingly and keep water clean.

A. dusty

B. dirty

C. wicked

D. halfway

Câu 1: They don't seem particularly worried about the situation.

A. concerned

B. pleased

C. frightened

D. excited

Câu 2: Fish only species that are not of concern, threatened or endangered.

A. bettered

B. born

C. safeguarded

D. taught

Câu 3: Rich families find it easier to support their children financially.

A. Wealthy

B. Well-off

C. Privileged

D. Poor

Câu 4: Man alone is born crying, lives complaining, and dies disappointed.

A. together

B. lonely

C. altogether

D. total

Câu 5: Keep only fish that you will eat; release the rest.

A. catch

B. hold

C. take

D. have

Câu 6: As long as you are still alive, you will definitely encounter the good things in life.

A. well

B. surviving

C. sick

D. dead