Most people who go online have mainly positive experience. But, 【C1】______ any endeavor—tr

Most people who go online have mainly positive experience. But, 【C1】______ any endeavor—traveling,cooking,or attending school— there are some risks. The online world, like the 【C2】______of society, is made up of a wide array of people. Most are【C3】______and respectful, but some may be rude and insulting,【C4】______ even mean and exploitative. Children get a lot of benefits from being online, but they can also be 【C5】______of crime and exploitation in this as in any other environment. Trusting, curious, and 【C6】______to explore this new world and the relationships it brings, children need parental【C7】______and commonsense advice. Although there have been some highly 【C8】______cases of abuse involving the Internet and online services, reported cases are 【C9】______ infrequent. Of course, like most crimes【C10】______ children, many cases go unreported,especially if the child is【C11】______ in an activity that he or she does not want to discuss with a parent. The fact that crimes are being【C12】______ online, however, is not a reason to【C13】______ using these services. To tell children to stop using these services would be like telling them to 【C14】______ attending school because students are sometimes【C15】______ there. A better strategy would be to instruct children about both the benefits and dangers of cyber space in order that they could better protect themselves in any【C16】______dangerous situation. 【C17】______ children need a certain 【C18】______of privacy, they also need parental involvement and supervision in their daily lives. The same parenting skills that【C19】______to the "【C20】______world" also works while online.

【C1】

A．with

B．like

C．for

D．as

请帮忙给出正确答案和分析，谢谢！