IV.语法填空(共10小题, 每小题1.5分，共15分)

In my free time, I really like surfing the Internet. When I get home from work, I turn on my computer, wait until it boots up__36____ (complete), and then I go online. I usually check my email first and then write a few messages __37____ family and friends. I sometimes scan the local news headlines at ___38___ favorite news Website（网站） and read up on the latest local and international news. This Website often provides video news clips____39___ you can view online. I sometimes order products or service online to save money and time instead of going to a store and__40____(buy) what I'm looking for. For example, I ___41____  (order)a digital camera online the other day and saved about $50. Whatever I do, I realize that there are problems__42_____ using the Internet including scams, identify theft, and viruses, so I'm very careful not to give out my ____43_____ (person) information. Furthermore, I don't download or open files I don't recognize. __44____(use) the Internet can be fun and a convenient way of shopping and finding out new information, but you just need to be _____45___(care).