Câu hỏi: How different a picture we now have of the ocean as the sea has begun to reveal its secrets.

A. public

B. opening

C. knowledge

D. schooling

Câu 1: One in seven accidents is caused by sleepy drivers.

A. awake

B. unwell

C. exhausted

D. talkative

Câu 2: Use water sparingly and keep water clean.

A. dusty

B. dirty

C. wicked

D. halfway

Câu 3: Be quiet or you'll wake the whole house!

A. still

B. noisy

C. peaceful

D. tranquil

Câu 4: The speaker likes to have an attentive audience.

A. neglecting

B. positive

C. active

D. interested

Câu 5: Fish only species that are not of concern, threatened or endangered.

A. bettered

B. born

C. safeguarded

D. taught

Câu 6: We can do something to save the earth.

A. kick

B. shoot

C. throw

D. destroy