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

A. endangering

B. may

C. a

D. reasons why

Câu 1: 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 2: The Oxford English Dictionary is well known for including many different meanings of words and to give real examples.

A. well known

B. The 

C. meanings 

D. to give

Câu 3: I had my motorbike repair yesterday but now it still doesn’t work.

A. had

B. repair

C. but now

D. work

Câu 4: Oxygen plays a important role in maintaining live.

A. a

B. plays

C. role

D. live

Câu 5: Unlike many writings of her time, she was not preoccupied with morality.

A. writings

B. of her time

C. preoccupied

D. with morality

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

A. who

B. is

C. speaks 

D. fluently