问题
选择题
I'll be upset ________ someone talks to me ________ I'm reading. [ ]
A. when;while
B. while;when
C. when;when
D. while;while
答案
答案：A
搜题请搜索小程序“爱下问搜题”
I'll be upset ________ someone talks to me ________ I'm reading. [ ]
A. when;while
B. while;when
C. when;when
D. while;while
答案：A