问题
选择题
His mother _____ a party member for 15 years. [ ]
A. become
B. became
C. joined
D. has been
答案
答案：D
搜题请搜索小程序“爱下问搜题”
His mother _____ a party member for 15 years. [ ]
A. become
B. became
C. joined
D. has been
答案：D