问题补充：
My parents said to me , “Don’t throw waste paper about.”
---- My parents told me .
A. don’t throw waste paper about
B. do throw waste paper about
C. not to throw waste paper about
D. you shouldn’t throw waste paper about
答案：
A. don’t throw waste paper about
B. do throw waste paper about
(答案→)C. not to throw waste paper about
D. you shouldn’t throw waste paper about
解析：考查不定式的否定式。不定式的否定是在不定式前面直接加not。Tell sb not to do sth告诉别人不要做某事。故C正确。
