The father as well as his three children skating on the frozen river every Sunday afternoon in winter .
A. go
B. are going
C. goes
D. went
网友回答
A. go
B. are going
(答案→)C. goes
D. went
解析：考查主谓一致。本句主语是The father as well as his three children，谓语动词与the father保持一致，故使用单数形式。根据every Sunday说明使用一般现在时，故C正确。