By the end of next month, you __ here for three years.
A.will have studied
B.study
C.will study
D.have studied
出自:国家开放大学英语语法

完成拼图验证

按住下方滑块,将拼图拖到缺口处后松开。

拼图背景,将小拼图拖到缺口处
向右拖动滑块