阿摩線上測驗
8. It almost killed Kevin to take care of his baby sister for one afternoon. He wondered
how his mom could do______ every day.
(A) her
(B) it
(C) one
(D) them
答案：登入後查看
統計： A(132), B(1012), C(44), D(87), E(0) #1996768
統計： A(132), B(1012), C(44), D(87), E(0) #1996768