Câu hỏi: Most of the houses on the street was built in the previous century.

A. of

B. on

C. previous

D. was

Câu 1: Unlike many writings of her time, she was not preoccupied with morality.

A. writings

B. of her time

C. preoccupied

D. with morality

Câu 2: There are many reasons why a particular species may become endangering.

A. endangering

B. may

C. a

D. reasons why

Câu 3: The harder he tried, the worst he danced before the large audience.

A. before

B. the

C. worst

D. tried

Câu 4: Foreign students who are doing a decision about which school to attend may not know exactly where the choices are located

A. are doing

B. about which

C. to attend

D. the choices

Câu 5: I can’t go out tonight because I have too many work to do.

A. can’t

B. because

C. too many

D. to do

Câu 6: David, who mother is Vietnamese, speaks both Vietnamese and English fluently.

A. who

B. is

C. speaks 

D. fluently