----- our problems all the time is unhealthyA.Worry about B.Worry to C.Worrying about D.Worrying to
问题描述：
----- our problems all the time is unhealthy
A.Worry about B.Worry to C.Worrying about D.Worrying to
答
----- our problems all the time is unhealthy
A.Worry about B. Worry to C. Worrying about D. Worrying to
选项是C
Worrying about our problems all the time 是动名词短语做主语。
答
选C
worry about为...担心
然后前面这个短语在句子里面充当主语~
所以要用ing形式~
祝：学习进步,更上一层楼! (*^__^*)
不明白的再问哟,请及时采纳,多谢!