Question

【题目】The doctor asked the old men _____ because it was bad for their health.

A.not smokingB.to smokingC.not to smokeD.to not smoke

Answer 1

【答案】C

【解析】

句意：医生要求老人们不要吸烟，因为吸烟对他们的健康有害。

smoke是动词，意为“吸烟”，根据固定搭配ask sb not to do sth“让某人不要做某事”，所以要用not to smoke，故答案选C。