语法与词汇 13.Our son doesn't know what to______at the university; he can't make up his mind about his future.
【正确答案】 B
【答案解析】A项take in意为“领会，接受，欺骗”；B项take up意为“拿起，占据，开始从事”；C项take over意为“接收，接管，接任”；D项take after意为“与……相像”。