答案：3. 時間狀語;賓語 單元寫作指導（參考范文） Friendship is of vital importance in life. True friends trust, respect and support each other. Honesty forms the basis of a good friendship. We should treasure our friends' company and strengthen friendship with sincerity. When misunderstandings arise, we should find reasons and apologize sincerely. In this way, we can enjoy lasting friendships. （解析：范文包含"友誼重要性、朋友品質(zhì)、誠實基礎、珍惜陪伴、處理誤解"等要點，用"When"等過渡詞連接，符合80詞要求。）
