Then is always a gap between what we say and ___________.

Then is always a gap between what we say and ___________.
A、what we do
B、what we did
C、that we do
D、that we did
【正确答案】:A
【题目解析】:and表并列,前后连接两个相同的结构,所以后面要用一般现在时,即what we do。