... WHILE HE WAS RUNNING IN THE PARK. A. THE LITTLE BOY FELL DOWN...

50. ... while he was running in the park. A. The little boy fell down B. The little boy was fallen down C. The little boy was falling down D. The little boy had been fallen downThe EndKEY TO EXAM 31 2 3 4 5 6 7 8 9 10D B C B A C A B D C11 12 13 14 15 16 17 18 19 20B A C C A D C A B A21 22 23 24 25 26 27 28 29 30D A B C D A C B D A31 32 33 34 35 36 37 38 39 40B A B C D D C D D B41 42 43 44 45 46 47 48 49 50B A A B D C A B D AThiều Hiểu Kính