继续英语救命.many young people use the internet for fun "___(surf)

继续英语救命.
many young people use the internet for fun "___(surf) the Net" and just follow any part they like ._____,it is useful to learn how to search more effectively for special information in order to save time and money.Form Six student Gloria Ma feels lucky because her sister is studing Computer Science and she lets Gloria use her computer.Gloria's sister has shown her ___to search the system properly and pick out the information she needs.
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"I'm not really ___computer fan "said Gloria ,"though I know it's important to be able to use them.My sister has shown me ways to find information I need ___homework and school projects.For the moment ,___is enough for me ".Gloria knows that some of her classmates are envious that she can use the Web and access a lot of cery up-yo-date information " _____ would be great to have computers like this at school .but unless students___(train)to use them properly .,they would waste a lot of time and not learn very much"
e .一楼的..那个..最后干嘛用被动?前面的两个都用It .是否有点简单呢?