Beyond doubt, so much noise outside ________ him settling down to ________ his homework．A.kept; doB.prevented; doC.kept; doingD.prevented; doing
网友回答
D解析考查动词的用法。prevent sb．(from)doing sth．阻止某人做某事；settle down to doing sth．静下心来做某事；keep sb．from doing结构中，from一般不省略。