The teacher was satisfied --the progress he had made,because

The teacher was satisfied __the progress he had made,because he rid himself ___ being lazy and careless.
A.about;of B.with;from C.with;of D.at;off
选C
两个固定词组
【be satisfied with】对...
【rid off】摆脱
翻译
老师对他的进步十分满意,因为他摆脱了懒惰和粗心的习惯