Câu 21. All our English teachers are . . . . . speakers.
A. native
B. original
C. foreign
D. orginally
Câu 22. If you were the president, what . . . . . you do to help the environment ?
A. will
B. would
C. do
D. are
Câu 23. When she comes later today, he . . . . . the dinner.
A. cooks
B. is cooking
C. will be working
D. has cooked
Câu 24. If the teacher were here now, wed ask him the difference . . . . science and technology.
A. among
B. of
C. between
D. for
Câu 25. Our teacher says that new technology . . . . . many worker jobless in the future.
A. makes
B. is making
C. will make
D. has made