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

30. When you are in a restaurant, you can raise your hand slightly to show that you need assistance.A. bill B. menu C. help D. foodMark the letter A, B, C or D to indicate the sentences which is closest in meaning to the given one.