阿摩線上測驗
7. It is raining, so my mother doesn’t allow me to swim ________ the river.
(A) on
(B) in
(C) by
(D) at
答案：登入後查看
統計： A(97), B(741), C(43), D(82), E(0) #937429
統計： A(97), B(741), C(43), D(82), E(0) #937429
