He ____ us dollars yet so he has to go to the bank to change money.
问题描述：
He ____ us dollars yet so he has to go to the bank to change money.
A won't change
B has't changed
C didn't change
D doesn't change
麻烦帮忙选下正确答案,
当然,不要找个色子掷哦.
再麻烦说下为什么
答
选B,因为句子中有一个yet,前面就理所当然要用现在完成时拉～