Question

【题目】（题文）Ordinary soap, _________ correctly, can deal with bacteria effectively.

A. used B. to use C. using D. use

Answer 1

【答案】A

【解析】考查非谓语动词。句意：如果正确使用的话，普通的肥皂可以有效地处理细菌。Ordinary soap can deal with bacterial effectively是主句，_________ correctly是条件状语，修饰ordinary soap，ordinary soap和use之间是被动关系，故要用过去分词，A选项正确。