I wasn't sure if he was really interested or if he_____polite.A will just be B was just being C had just been D would just be 这道题考察什么知识点为什么选那个选项

问题描述:

I wasn't sure if he was really interested or if he_____polite.
A will just be
B was just being
C had just been
D would just be
这道题考察什么知识点
为什么选那个选项