阿摩線上測驗
18. While my sister enjoys swimming, I______ running.
(A) prefer to do
(B) to prefer doing
(C) preferring to do
(D) do preferring
答案：登入後查看
統計： A(32), B(0), C(0), D(2), E(0) #3229427
統計： A(32), B(0), C(0), D(2), E(0) #3229427
