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

A. small

B. chief

C. minor

D. main

Câu 1: It's too far to ride to your grandmother's; you'd better take the bus.

A. remote

B. near

C. fast

D. besides

Câu 2: Last night they stayed at home and watched TV.

A. day

B. noon

C. midnight

D. morning

Câu 3: They don't seem particularly worried about the situation.

A. concerned

B. pleased

C. frightened

D. excited

Câu 4: Be quiet or you'll wake the whole house!

A. still

B. noisy

C. peaceful

D. tranquil

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 business was acquired from Orion four years ago.

A. before

B. later

C. ahead

D. last