【答案解析】[解析]
Have a good trip, Mike.
[解析] 原文：Have a good trip, Mike. 对于别人的祝愿要表示感谢，选项[C]Thank you. 符合题意。
单选题
A. It was sunny.
B. be hot.
C. It's warm.
【正确答案】
A
【答案解析】[解析]
How was the weather yesterday?
[解析] 原文：How was the weather yesterday? 昨天天气怎么样? 这是对过去的情况进行的提问，回答时也要用过去时回答，选项中只有[A]It was sunny. 为过去时，符合题意。
单选题
A. In the library.
B. Three days ago.
C. For three days.
【正确答案】
B
【答案解析】[解析]
When did you borrow the book?
[解析] 原文：When did you borrow the book? 这里是对过去某一时刻进行提问，应用具体的时间进行回答。选项[B]Three days ago. 符合题意。
单选题
A. Not at all.
B. I will. Thank you.
C. The same to you.
【正确答案】
B
【答案解析】[解析]
Please give my best wishes to your family.
[解析] 原文：Please give my best wishes to your family. 这也是表达祝福的一种方式，但不是针对听话人，而是针对听话人的家人。选项[B]I will Thank you. 符合交际习惯。
单选题
A. See you later.
B. Nice to meet you, too.
C. Thank you.
【正确答案】
B
【答案解析】[解析]
Nice to meet you.
[解析] 原文：Nice to meet you. 回答时一般还是用Nice to meet you, too进行回答。