单选题 John has received offer letters from three companies, but he wants to ______ his options open, as he hasn't decided what kind of job he wants to do.
A. take B. leave C. let D. make

【正确答案】 B
【答案解析】[解析] 句子的大意为：约翰收到三个公司的录用书，但他并没有作出选择，因为他还没有想好自己要从事的工作类型。A项take“拿，取”；B项leave“离开，保持……状态”；C项let“让”；D项make“使得”。所以B项符合题意。