(单选题)

The author feels sad sometimes because ______.

A.he has a soft heart

B.he relies much on others

C.some people pretend to be kind

D.some people fail to see the kindness in others

参考答案：D

参考解析：

细节理解题。根据第二段第一、二句“sometimes I feel sad because those who appear independent miss the kindness I see daily. They don’t get to see this soft side of others often, we try every way possible to avoid showing our weakness, which includes a lot of pretending.”可知，看到有些人过于独立而拒绝别人的帮助，从而看不到别人善良的一面，我感到很伤心。故选D。

知识点：阅读理解四选一英语专业基础知识阅读理解教师招聘-小学英语