单选题
A. Medium size, please.
B. I love it.
C. Don't mention it.
【正确答案】
A
【答案解析】[解析]
Which pair of shoes do you like?
[解析] 选项[A]Medium size，please. 想要一个中号的，符合题意。
单选题
A. Please help me.
B. Do me a favor, please.
C. Help yourself.
【正确答案】
C
【答案解析】[解析]
The chicken is delicious.
[解析] 选项[C]Help yourself. 请随意，是吃饭时主人对客人经常说的话。尤其是当客人赞美菜做得好吃时。
单选题
A. Yes, you would.
B. No, I didn't.
C. No, not at all.
【正确答案】
C
【答案解析】[解析]
Would you mind my Opening the door?
[解析] 对话问句：Would you mind my opening the door? 我开门你介意吗? 三个选项中[C]No, not at all. 不介意，符合语境。
单选题
A. No, it's not cute. It's scary.
B. Yes, I am worried about it.
C. Not at all.
【正确答案】
A
【答案解析】[解析]
Don't worry. It won't hurt you. It's cute, isn't it?
[解析] 对话问句：It's cute, isn't it? 三个选项中[A]No, it's not cute. It's scary. 不好玩，太吓人了，符合语境。
单选题
A. Oh, I don't know.
B. Please make up your mind.
C. How much is it?
【正确答案】
B
【答案解析】[解析]
Um, okey. I'll take two or three of them.
[解析] 只有选项[B]Please make up your mind. 是在买东西时顾客拿不定主意时售货员常说的话，符合语境。