THE NUMBER OF THE PARTICIPANTS IN THE SURVEY _______ 250 STUDENTS...

26. - THI HOC KI 1 CO DAP AN KEM
Lớp 12 THI HOC KI 1 CO DAP AN KEM

26. The number of the participants in the survey _______ 250 students for

c. have arrived / was discovering / had prepared

Oxford University.

d. arrived / discovered / was preparing

a. are

b. was

c. were

d. have been