问题
选择题
To save water, the parents told their children ________ their teeth under a running tap.
A．to brush
B．not brushing
C．not to brush
D．brushing
答案
答案：C
题目分析：句意：为了节约用水，父母告诉他们的孩子不要让水龙头开着刷牙。tell sb not to do sth告诉某人不要做某事。根据句意，故选C。