He seldom has time with his family so they complainhimit.A. with aboutB. to aboutC. on atD

问题补充：

He seldom has time with his family,so they complainhimit.

A. with,about

B. to,about

C. on,at

D. to ,at

答案：

A. with,about

(答案→)B. to,about

C. on,at

D. to ,at

解析：考查介词。本题考查短语complain to sb about sth向某人抱怨某事。句意：他很少有时间和家人在一起，因此他们向他抱怨这件事情。