Part B For this part, you are to write an essay on the topic Computer Network in three paragraphs. You are given the first sentence of each paragraph. Your part of the composition should be about 120 words, not including the words given. You should write this composition on the Composition Sheet. Computer Network 1) Computer networks have enabled us to do a number of things more easily and quickly. 2) However, if not properly dealt with, Internet would bring problems too. 3) Therefore, the safety of networks has increasingly become a public concern.