关键词：考研英语、呱呱呱测评、答案
呱呱呱测评作为考研英语的权威测试工具，其答案如下：
1. 阅读理解：A
2. 完形填空：C
3. 翻译：The rapid development of technology has brought about numerous benefits to our lives.
4. 写作：Dear friend,
I am writing to express my gratitude for your thoughtful gift. The book you sent me is exactly what I needed to broaden my knowledge. I will cherish this gift and make full use of it in my studies.
Thank you once again for your kindness.
Yours sincerely,
[Your Name]
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