单选题
A. I am. B. Sony, I can't. C. Lucy is absent. D. Fine, thank you.
【正确答案】
A
【答案解析】[解析] Hello, everyone! Who is on duty today?
[解析] “Who is on duty today?”即“今天谁值日?”，“on duty”的含义是“值日、值勤、值班”。A选项“I am．”(我值日。)是这一询问的恰当回答，故选A。
单选题
A. Fine, thank you. B. That's all right. C. I'm afraid, it's too weak. D. Don't mention it.
【正确答案】
C
【答案解析】[解析] How is the coffee?
[解析] “How is the coffee?”即“咖啡怎么样?”，“How is．．．?”这一句式常用来询问“……怎么样?”。C选项“I'm afraid，it's too weak．”(恐怕味道有点儿淡。)是对这一询问的恰当回答，故选C。
单选题
A. I'm not sure. B. You're right. C. Yes, certainly. D. That's interesting.
【正确答案】
C
【答案解析】[解析] Mr. Smith is not in. Could you please leave a message?
[解析] “Mr．Smith is not in．Could you please leave a message?”即“史密斯先生不在。您能留下口信吗?”，“Could you please．．．?”这一句式常用来婉转地提出建议，表示“您能……吗?”。C选项“Yes，certain- ly．(好的，当然可以。)是这一建议的恰当回答，故选C。
单选题
A. Thank you. B. I like growing flowers. C. Yes, you are right. D. I don't agree.
【正确答案】
B
【答案解析】[解析] My father likes growing vegetables and fruits, what about you?
[解析] “My father likes growing vegetables and fruits，what about you?”即“我父亲喜欢种蔬菜和水果，你呢?，“What about．．．?”这一句式常用来询问对方的看法或用于提出建议，含义是“……怎么样?”。B选项“I like growing flowers．”(我喜欢种花。)是这一问候的恰当回答，故选B。
单选题
A. I had many travels by train. B. Here you are. C. I like traveling. D. Yes, it's very comfortable.
【正确答案】
D
【答案解析】[解析] Is this the first time you have traveled by air?
[解析] “Is this the first time you have traveled by air?”即“这是你第一次乘飞机旅行吗?”，“by air”即“by plane”表示“乘飞机”。D选项“Yes，it's very comfortable．”(是的，乘飞机非常舒适。)是对这一问题的恰当回答，故选D。