I have _______here for two months.So you _______here since two years agoA come cameB been have beenC been came D come have been选哪个呢 为什么呢

问题描述:

I have _______here for two months.So you _______here since two years ago
A come came
B been have been
C been came
D come have been
选哪个呢 为什么呢