EXERCISE 3I. CHỌN TỪ/ CỤM TỪ THÍCH HỢP (ỨNG VỚI A, B, C, D) ĐỂ HÒAN TH...

17. “Be aware of the dog,” said Tom.  Tom warned us _______.A. to be aware of the dog B. being aware of the dogC. we should be aware of the dog D. aware of the dog