单选题 There have been some changes in gender roles over the years. In the past, it was usually the men who ______ dates and paid all the expense. But now women may do the same, too.

【正确答案】 A
【答案解析】近年来在性别的角色作用方面发生了很大的变化。以前都是男人提出约会并负责所有的花销，而现在女性也会这样做。本题考查动词辨义。initiate“开始，发起”；boost“鼓励，激励，提高”；evoke“唤起，引起，使人想起”；undertake“承担”。