SEVERAL STUDENTS FAILED TO REACH THE…………..STANDARDA. REQUIRE B. RE...

77. - BAI TAP TRAC NGHIEM ANH VAN CUC HAY CHO MOI CAP DOCO DAP AN DAY DU
BAI TAP TRAC NGHIEM ANH VAN CUC HAY CHO MOI CAP DOCO DAP AN DAY DU
77. Several students failed to reach the…………..standardA. require B. required C. requiring D. requirement