I___ (worry about)my son多少填法答案上写是am worried about
问题描述：
I___ (worry about)my son多少填法答案上写是am worried about
答
worried为形容词,be worried about.
worry 为动词,worry about
所以除了am worried about还可以填worried about（一般过去时）或worry about(一般现在时）