Câu hỏi: The raccoon is a nocturnal animal.

A. harmless

B. night

C. marsupial

D. diurnal

Câu 1: The 1908 Siberian meteorite explosion brought about considerable depletion of the northern hemisphere's ozone layer.

A. was caused by

B. resulted in

C. brought back

D. was initiated by

Câu 2: The aircraft carrier is indispensable in naval operations against sea or shore based enemies.

A. unique

B. novel

C. exotic

D. vital

Câu 3: I told you clearly and definitely not to write your answers in pencil, Smith!

A. considerably

B. thoroughly

C. altogether

D. specificially

Câu 4: I didn’t go to work this moring. I stayed at home because of the morning rain.

A. thanks to

B. on account of

C. in spite of

D. in addition to

Câu 5: Scientists warn of the impending extinction of many species of plants and animals.

A. irrefutable

B. imminent

C. formidable

D. absolute

Câu 6: Before the earthquake hit the area,many minor tremors were felt.

A. spasms

B. noises

C. vibrations

D. crumblings