My father with my mother my grandparents’ home every Sunday.
A. is going
B. are going
C. is going to
D. are going to
网友回答
A. is going
B. are going
(答案→)C. is going to
D. are going to
解析：此题重点考查be going to 的基本结构。其中be有人称和数的变化。本句中的主语是my father，而with my mother是从属结构，是my father的同位语，故be的形式要用is，故选C。