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: He had never experienced such rudeness towards the president as it occurred at the annual meeting in May.

A. thought

B. hostility

C. care

D. politeness

Câu 3: 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 4: It is easy to open a shop but hard to keep it always open.

A. welcome

B. appear

C. switch

D. close

Câu 5: Last night they stayed at home and watched TV.

A. day

B. noon

C. midnight

D. morning

Câu 6: We know not what is good until we have lost it.

A. find

B. count

C. guess

D. learn