阿摩線上測驗
30. Every year, my parents go mountain climbing ______ Valentine’s Day because they met each other in the
mountaineering club.
(A) in
(B) on
(C) at
(D) by
答案：登入後查看
統計： A(20), B(210), C(34), D(2), E(0) #2062553
統計： A(20), B(210), C(34), D(2), E(0) #2062553
