Mary is going ____ December and she's staying ____ a week. [ ]A. on, for B. in, for C. at, for
[ ]
题目简介
Mary is going ____ December and she's staying ____ a week. [ ]A. on, for B. in, for C. at, for
题目详情
[ ]
B. in, for
C. at, for
D. at, in
答案