题目

House Sitting In many countries of the world people do what is called house sitting. It means that if owners of the house are going away, they want someone to come into their home and look after the house and maybe pets while they are away. In Australia, many people travel. After people retire, they might buy a van(房车) and travel all over the country.    36       So if someone wants to travel or go away for some reason, they might want someone in their home to care for it and keep the gardens tidy. House sitters might have to care for pets. Also, quite a few people have sw下面是单价为每千克7.85元的豆油售价表．数量/千克123456789总价/元7.8515.7023.5531.4039.2547.1054.9562.8070.65查表算出14千克豆油的总价是多少．