阿摩線上測驗
38. As studies showed, the study hours of girls are always longer than ________ of boys before college.
(A) it
(B) that
(C) these
(D) those
答案：登入後查看
統計： A(12), B(101), C(62), D(434), E(0) #2390806
統計： A(12), B(101), C(62), D(434), E(0) #2390806
