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

A. concerned

B. pleased

C. frightened

D. excited

Câu 1: 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 2: Last night they stayed at home and watched TV.

A. day

B. noon

C. midnight

D. morning

Câu 3: The plants and animals of the sea fall into three major groups.

A. small

B. chief

C. minor

D. main

Câu 4: There is growing concern about the way man has destroyed the environment.

A. attraction

B. worry

C. disinterest

D. careless

Câu 5: 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 6: One in seven accidents is caused by sleepy drivers.

A. awake

B. unwell

C. exhausted

D. talkative