HE ………. WEAR SUIT AT WORK BUT HE USUALLY DOES. A. DOESN’T HAVE TO C...

5. - DE KIEM TRA TIENG ANH TRINH DO B CO DAP AN TIENG ANH TRINH DO A B
DE KIEM TRA TIENG ANH TRINH DO B CO DAP AN TIENG ANH TRINH DO A B
5. He ………. wear suit at work but he usually does. A. doesn’t have to C. have to B. mustn’t D. must