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

29. - 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
29. This is a valuable book. You must look after it carefully and you needn’t lose it. A. carefully B. needn’t C. must look D. a