问题
选择题
He ____ busy then; otherwise, I believe, he would have given you a hand．
A．had been
B．were
C．must be
D．was
答案
答案：D
搜题请搜索小程序“爱下问搜题”
He ____ busy then; otherwise, I believe, he would have given you a hand．
A．had been
B．were
C．must be
D．was
答案：D
