在探索考研新概念英语二的答案时，考生需深入理解每个句子的语境和词汇含义。以下是对部分习题的解答示例：
1. What did he do after he finished his work?
答案：He went to the library to study.
2. She has been preparing for the exam all day long.
答案：She is extremely tired but determined.
3. The professor explained the complex concept in a simple way.
答案：His teaching style was very effective.
4. They decided to postpone the trip due to the bad weather.
答案：They chose to wait for better conditions.
5. The company plans to expand its business in the near future.
答案：It is looking forward to new opportunities.
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