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

A. endangering

B. may

C. a

D. reasons why

Câu 1: My father asked me where had I gone the night before.

A. asked

B. the 

C. before

D. had I

Câu 2: She did not know where most of the people in the conference was from.

A. did not

B. where

C. the

D. was

Câu 3: 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 4: 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 5: Many young people lack skills, good education, and financial to settle in the urban areas where many jobs are found.

A. lack

B. financial

C. urban areas

D. are found

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

A. who

B. is

C. speaks 

D. fluently