如果做帐有困难(如果他这样说的话)，那你就说就算我向你借的，
到将来财务发工资时(比如一周一次)，再还给你。

这样说有两个前提：
1，你不是特别在意是否会丢这份工作
2，你觉得老板可能会赖你钱(特别是他试工几天后不要你再做了)
3，你也不是那种为了几天工钱就会契而不舌地要回来的人

那么，为了你自己心里好受些，可以照我上面说的去跟老板说。

即使急着找工也不要病急乱投医，水果店的工无所谓，这样的工多的是。

I applied for a position working as a casher, waitress and cleaner in a fast food resturant when I first arrived in Toronto. My boss said the same thing and I accepted at that time. At the end of the second day, I told him, "How do you think my work. I've worked here for 2 days, I think you can figure out if am the right person for this position. If you think I am OK working here, please pay me from tomorrow. If not, sorry, I've got to go. I am busy and I have a lot of things to do. But I do appriciate the opprotunity you provide." He thought for a whild, then tell me yes you can work from tomorrow. Try if you want. But don't waste your time up to one week. Good luck!!!

再决定以后是否录用。我以前曾在酒吧里做part time 工，一看到上百种酒头就发大，一开始，就是背酒名，背调酒配方，那种酒用那种酒杯，比例是多少。。。再就是洗酒杯，当时的感觉是老想给老板帮忙，可就是帮不上。等到学会以后，老板就会付比较好的价钱了。
你要打工的水果店一定是私人店，所以，你要和他谈2个价钱：1. 试用期间； 2.试用期后。
南韩人工作很认真，吃苦，不苟言笑， 不过也很扣儿。祝你好运！