problem solving

题目

problem solving
Danny has just started his summer vacation.Tomorrow his parents will go out on bissiness.They will be away for two or three days.Danny doesn't want to let his parents worry about him while they are away,so now he is doing some preparations with his parents.What preparations do you think he needs to do Give three suggestions.
1：
2：
3：

答案

1.prepare for enough food and drinks2.learn how to use the electronic appliances in the house3.pay attention to the safety of his own to make his parents not worry