Question

【题目】John promised his doctor he not smoke， and he has never smoked ever since.

A.might B.should C.could D.would

Answer 1

【答案】 D

【解析】 句意为:约翰答应医生他不再吸烟，从那以后，他再也没有吸过烟。由句意可知空格处表示允诺，故应选择D项。