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

13. ________ I have a day off tomorrow? – Of course not. We have a lot of things to do.A. Must B. Will C. May D. Need