Câu hỏi: Certain courses are compulsory; others are optional.

A. voluntary

B. free

C. pressure

D. mandatory

Câu 1: She must be very strong to carry such a weight on her back.

A. weak

B. musculous

C. sick

D. healthy

Câu 2: Soon after it was born, the calf got up and tried to stand on its shaky legs.

A. appeared

B. died

C. joined

D. celebrated

Câu 3: You did a beautiful thing in helping those poor children.

A. meaningful

B. good

C. terrible

D. positive

Câu 4: The Red Cross is an international humanitarian agency dedicated to reducing the sufferings of wounded soldiers, civilians and prisoners of war.

A. worry and sadness

B. pain and sorrow

C. loss

D. happiness

Câu 5: His policies were beneficial to the economy as a whole.

A. harmless

B. crude

C. harmful

D. good

Câu 6: The earth is being threatened and the future looks bad.

A. done

B. made

C. protected

D. varied