Harriet is lost and her parents are reallyher.A.interested in B. afraid of C. busy with d.

问题补充：

Harriet is lost and her parents are reallyher.

A.interested in B. afraid of C. busy with d. worried about

答案：

解析：短语辨析interested in“对……感兴趣”；afraid of “恐怕；害怕”； busy with“忙于做……” worried about“对……担心焦虑”。句意为“Harrie丢了，她的父母真的很担心她。