WORK HARD ________ YOU WILL FAIL THE EXAMS.A. LESSONS B. WORKSA. I...

11. - 30 BAI TRAC NGHIEM VOI KEYS FOR 9 P
30 BAI TRAC NGHIEM VOI KEYS FOR 9 P

11. Work hard ________ you will fail the exams.

A. lessons B. works

A. if B. or

C. experiments D. tasks

C. unless D. and