Câu hỏi: Not everyone realizes that the most largest organ of the human body is the skin.

A. not everyone

B. most largest

C. human

D. is

Câu 1: An ambitious person is committed to improve his or her status at work.

A. is

B. improve

C. status

D. at

Câu 2: Sometimes it takes me about three hours finishing my round.

A. sometimes

B. me

C. hours

D. finishing

Câu 3: The Great Pyramid of Giza is said to have built over a 20-year period.

A. of

B. said

C. have built

D. a

Câu 4: Many languages used around the world they do not have a form of writing.

A. used

B. around

C. they

D. a form of writing

Câu 5: Little have people done to alleviate the sea pollution caused by the factories in central Vietnam, haven’t they?

A. have people done

B. caused

C. in central

D. haven’t they

Câu 6: The governor, with his wife and children, are at home watching the election results on TV.

A. his

B. are

C. watching 

D. on TV