Directions: For this part, you are allowed 30 minutes to write a composition about Competition and Cooperation in three paragraphs. You are given the first sentence of each paragraph and are required to develop its idea in completing the paragraph. Your part of the composition should be no less than 150 words, not including the words given. Remember to write clearly.
Competition and Cooperation
1. 竞争是普遍存在的一种社会现象，合作也是。
2. 竞争与合作并不矛盾，可以兼容。
3. 合作是为了更有效的竞争。
