问题
选择题
He is going to work hard get good grades math. [ ]
A. to; for
B. at; in
C. to, in
D. about; in
答案
答案：C
搜题请搜索小程序“爱下问搜题”
He is going to work hard get good grades math. [ ]
A. to; for
B. at; in
C. to, in
D. about; in
答案：C