Câu hỏi: 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 1: David, who mother is Vietnamese, speaks both Vietnamese and English fluently.

A. who

B. is

C. speaks 

D. fluently

Câu 2: It is important that you turned off the heater every morning before you leave for class.

A. turned off

B. before

C. important

D. leave for

Câu 3: There are some people in the government try to improve the lives of poor people.

A. to improve

B. There are

C. lives

D. try

Câu 4: There are many reasons why a particular species may become endangering.

A. endangering

B. may

C. a

D. reasons why

Câu 5: A child of noble birth, his name was famous among the children in that school.

A. of

B. his name

C. among

D. in that

Câu 6: Hardly did he enter the room when all the lights went out.

A. did he enter

B. when

C. the lights

D. went