Câu hỏi: At times, this can be risky, and the keepers have been injured and one has been killed.

A. good

B. useful

C. healthy

D. secure

Câu 1: Last night they stayed at home and watched TV.

A. day

B. noon

C. midnight

D. morning

Câu 2: As long as you are still alive, you will definitely encounter the good things in life.

A. well

B. surviving

C. sick

D. dead

Câu 3: We can do something to save the earth.

A. kick

B. shoot

C. throw

D. destroy

Câu 4: He had never experienced such rudeness towards the president as it occurred at the annual meeting in May.

A. thought

B. hostility

C. care

D. politeness

Câu 5: There is growing concern about the way man has destroyed the environment.

A. attraction

B. worry

C. disinterest

D. careless

Câu 6: Rich families find it easier to support their children financially.

A. Wealthy

B. Well-off

C. Privileged

D. Poor