Let’s to the park Sunday OK? A. go; on B. to go; on C. go; in

问题补充：

Let’s to the park Sunday, OK?

A. go; on B. to go; on C. go; in

答案：

解析：在英文中使役动词let后跟动词原形作补语，表示在天前用介词on，故本题选A。