His father doesn’t allow him games he always keeps him his homework.A. to play to do B.

问题补充：

His father doesn’t allow him games, he always keeps him

his homework.

A. to play, to do B. playing, doing C. to play, doing

答案：

解析：allow sb. to do sth.允许某人做某事 allow doing sth., 不可说allow sb. doing sth.

Keep（sb.） doing sth.坚持做某事，一直做某事，故选C