单选题
The ability to use a language can be______ only by the act of using the language.
【正确答案】
A
【答案解析】解析:acquire vt.(—般指经过一个过程或通过自己的努力)取得,获得,(以抽象名词作宾语:acquire confidence/a command of theEnglish language/a large vocabulary/a knowledgeof/information about sth.)。require vt.要求,规定;需要。perform vt.履行;表演,演出。perfect vt.使完美,使完善。