DID HE TELL YOU HOW MUCH...

50. Did he tell you how much...?A. the book costs B. does the book costC. the book cost D. does the book costsThe EndKEY TO EXAM 21 2 3 4 5 6 7 8 9 10D A C B A C D B A A11 12 13 14 15 16 17 18 19 20C A D C B D A B C A21 22 23 24 25 26 27 28 29 39C B B C B B C B C A31 32 33 34 35 36 37 38 39 40C A B D B A D B A A41 42 43 44 45 46 47 48 49 50C D D D A D B B C AThiều Hiểu Kính