问题
选择题
They are doing _____ homework at home. [ ]
A. our
B. them
C. their
D. one's
答案
答案：C
搜题请搜索小程序“爱下问搜题”
They are doing _____ homework at home. [ ]
A. our
B. them
C. their
D. one's
答案：C