单选题
He didn't allow ______ in his room, actually he did not allow his family ______ at all. A. to smoke...to smoke B. smoking...to smoke C. to smoke...smoking D. smoking...smoking
【正确答案】
B
【答案解析】[解析] allow作动词，意为“允许”，既可跟复合宾语，也可跟动名词作宾语，即可用于下面两种结构：allow sb. to do sth. 和allow doing sth. 结构，例如：We do not allow people unconcerned to enter the conference room. 我们不允许无关人员进入会议室。例如：We don't allow smoking in the hall. 大厅里不允许吸烟。由此我们可以看出，只有B项最合题意，为正确答案。