Câu hỏi: We watched as the plane disappeared behind the clouds.

A. melted

B. escaped

C. vanished 

D. perished

Câu 1: Scientists warn of the impending extinction of many species of plants and animals.

A. irrefutable

B. imminent

C. formidable

D. absolute

Câu 2: In the United States, a party can nominate a single candidate for office.

A. refuse

B. keep

C. change

D. appoint

Câu 3: 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 4: 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 5: There were so many members of the political party who had gone against the leader that he resigned.

A. apposed

B. insisted

C. invited

D. opposed

Câu 6: I’ll take the new job whose salary is fantastic.

A. reasonable

B. acceptable

C. pretty high

D. wonderful