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

A. educated

B. healed

C. defended

D. brought

Câu 1: Be quiet or you'll wake the whole house!

A. still

B. noisy

C. peaceful

D. tranquil

Câu 2: Some couples see single women as a threat to their relationships.

A. married

B. lonely

C. divorced

D. alone

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

A. neglecting

B. positive

C. active

D. interested

Câu 4: One in seven accidents is caused by sleepy drivers.

A. awake

B. unwell

C. exhausted

D. talkative

Câu 5: 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 6: The plants and animals of the sea fall into three major groups.

A. small

B. chief

C. minor

D. main