单选题 The office will be closed until next Tuesday due to a national holiday, so customers should leave a message ______ my answering service.
【正确答案】 A
【答案解析】[解析] 词汇：介词
1．这是一道词汇题，选项均为介词。
2．四个介词中，A选项with意为“把A留给B”，固定搭配为leave A with B。