Câu hỏi: When precipitation occurs, some of it evaporates, some runs off the surface it strikes, and some sinking into the ground.

A. When

B. it

C. runs off

D. sinking

Câu 1: It was not until the end of prehistoric times that the first wheeled vehicles appearing

A. It was

B. prehistoric

C. wheeled vehicles

D. appearing

Câu 2: A warning printed on a makeshift lifebuoy says: “This is not a life-saving device. Children should be accompany by their parents.”

A. printed

B. makeshift lifebuoy

C. device

D. accompany

Câu 3: 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 4: 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 5: The amount of women earning Master's Degrees has risen sharply in recent years.

A. The amount of

B. Master’s

C. has risen

D. recent years

Câu 6: Of all the art-related reference and research library in North America, that of the Metropolitan Museum of Art in New York City is among the largest and most complete.

A. Of all

B. reference and research

C. library

D. that of