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

A. educated

B. healed

C. defended

D. brought

Câu 1: There is growing concern about the way man has destroyed the environment.

A. attraction

B. worry

C. disinterest

D. careless

Câu 2: They don't seem particularly worried about the situation.

A. concerned

B. pleased

C. frightened

D. excited

Câu 3: Some couples see single women as a threat to their relationships.

A. married

B. lonely

C. divorced

D. alone

Câu 4: Use water sparingly and keep water clean.

A. dusty

B. dirty

C. wicked

D. halfway

Câu 5: It's cool and quiet everywhere except in the kitchen.

A. windy

B. freezing

C. cold

D. hot

Câu 6: It is easy to open a shop but hard to keep it always open.

A. welcome

B. appear

C. switch

D. close