问题补充：
--My parents always tell me others late at night.
--They’re right. It’s not polite.
A. call
B. not call
C. not to call
D. to call
答案：
A. call
B. not call
(答案→)C. not to call
D. to call
解析：考查固定搭配。Tell sb to do sth.告诉某人做某事；Tell sb not to do sth.告诉某人不做某事。句意：父母告诉我不要深夜给别人打电话，他们说的对。那是不礼貌的。所以选C。
