49. According to the passage, why might a dog eat chocolate?
(A) It can eat poisonous food.
(B) It needs to have caffeine.
(C) It can smell the theobromine.
(D) It likes to imitate their owners.
答案:登入後查看
統計: A(0), B(1), C(7), D(13), E(0) #1888589
統計: A(0), B(1), C(7), D(13), E(0) #1888589