Câu hỏi: Dinosaurs became extinct millions of years ago because of the earth's climate changed drastically.

A. became extinct

B. because of

C. The earth’s

D. drastically

Câu 1: Some people often say that using cars is not as convenient than using motorbikes.

A. some

B. say

C. than

D. is

Câu 2: People are not allowed enter the park after midnight because of lack of security.

A. allowed enter

B. after

C. because of

D. of

Câu 3: For the first time in the history of the country, the person which was recommended by the president to replace a retiring justice on the Supreme Court is a woman.

A. which

B. was recommended

C. to replace

D. retiring

Câu 4: The Games' organizers faced significant bed shortages because the record number of more than 13,000 athletes and officials who attended the 2006 Games

A. faced

B. bed shortage

C. because

D. attended

Câu 5: The Greek historian Herodotus reported that one hundred thousand men are employed for twenty years to build the Great Pyramid at Gizeh.

A. are

B. for

C. to build

D. at Gizeh

Câu 6: It is interesting to compare the early stylized art forms of ancient civilizations to the modern abstract forms of art.

A. interesting

B. to compare

C. of

D. to