IF HE ……….. A STUDENT, HE MUST WEAR SCHOOL UNIFORMA. WAS B. HAS B...

165. - BAI TAP TRAC NGHIEM TONG HOP A9
BAI TAP TRAC NGHIEM TONG HOP A9

165. If he ……….. a student, he must wear

school uniform

a. was b. has been c. is

will be