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

40. - It’s my sister’s birthday tomorrow.  “___________”.A. How old are they? B. What a good idea!C. Happy New Year! D. Is she going to have a party?