【题目】The criminal was desperate to get out. He tried everything to escape, but _________.
A. in person B. in company C. in favor D. in vain
在线课程【答案】
【解析】
试题分析：句意：那个罪犯不顾一切想逃出去。他想尽一切办法逃跑，但都是徒劳。in vain意为“徒劳，白费”，故选D项。in person“亲自，当面”；in company (with)“陪伴，和……一起”；in favor“支持，赞同”。