THIS IS A VALUABLE BOOK. YOU MUST LOOK AFTER IT CAREFULLY AND YOU...

36. - KIEM TRA HOC KI 2 ANH VAN 12 6 KIEM TRA 12 HK2
Lớp 12 KIEM TRA HOC KI 2 ANH VAN 12 6 KIEM TRA 12 HK2
36. This is a valuable book. You must look after it carefully and you needn’t lose it. A. must look B. needn’t C. carefully D. a