阿摩線上測驗
40. While looking down on the earth from space, ______.
(A) you can see only one man-made structure
(B) there is only one man-made structure that you can see
(C) the only man-made structure to be seen is the Great Wall
(D) the Great Wall is the only man-made structure to be seen
答案：登入後查看
統計： A(144), B(121), C(106), D(94), E(0) #2062953
統計： A(144), B(121), C(106), D(94), E(0) #2062953
