单项选择题

Questions 15～18
According to the talk, what is a smile（）

A. It is a friendly face or a clever joke.
B. It is a facial expression involving 43 muscles.
C. It is an exercise of facial muscles when passing wind.
D. It is a natural reaction to a positive moment.

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单项选择题听力原文：This report is urgent. I have to finish typing it by Monday morning, so there goes my sleep this weekend.（）

A．I’d like to make an appointment Monday morning.
B．I must finish typing before going to bed.
C．I have to work overtime this weekend.
D．I decide to sleep this weekend away.

Why is the man telephoning the woman（） A. To advise her...

单项选择题Why is the man telephoning the woman（）

A. To advise her to work in a showroom.
B. To help her understand the product.
C. To invite her to visit a trade fair.
D. To expound the details of the catalogue.

Questions 15～18 According to the talk, what is a smile（）

Questions 15～18
According to the talk, what is a smile（）