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

A. together

B. lonely

C. altogether

D. total

Câu 2: It is easy to open a shop but hard to keep it always open.

A. welcome

B. appear

C. switch

D. close

Câu 3: The speaker likes to have an attentive audience.

A. neglecting

B. positive

C. active

D. interested

Câu 4: Fish only species that are not of concern, threatened or endangered.

A. educated

B. healed

C. defended

D. brought

Câu 5: They don't seem particularly worried about the situation.

A. concerned

B. pleased

C. frightened

D. excited

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

A. awake

B. unwell

C. exhausted

D. talkative