Viết câu hoàn chỉnh, sử dụng các từ đã cho trước

We / not visit / our grandparents/ two months. *

 A We hasn’t visited our grandparents for two months.
B We not visited our grandparents for two months.
C We haven’t visited our grandparents since two months.
 DWe haven’t visited our grandparents for two months.