血液循环中血氧饱和度最高的部位是A．左心房B．左心室C．脐动脉D．脐静脉E．右心房

What does file woman suggest the man do to make his work easier？

A．Spend more time in the library.

B．Write just one paper for all his classes.

C．Drop one of his courses.

D．Do his research on closely related topics.

Why does the teacher write this letter？

A．To help his students learn English.

B．To make his students work harder.

C．To give his students some advice.

Why does the teacher write this letter？

A．To help his students learn English.

B．To make his students work harder.

C．To give his students some advice.

What does the woman suggest the man do to make his work easier？

A．Spend more time in the library.

B．Write just one paper for all his classes.

C．Drop one of his courses.

D．Do his research on closely related topics.

听力原文：M: Oh, Dad. Does Bill work in your factory？

W: No, his sister works here. He works in a school.

Q: Where does Bill's sister work？

(17)

A．In the hospital.

B．In a school.

C．In the factory.

听力原文：W: Oh, Dad. Does Bill work in your factory？

M: No, his sister works here. He works in a school.

Q: Where does Bill's sister work？

(20)

A．In a factory.

B．On a farm.

C．At a school.

What does your father () ？

A. work

B. do

C. be

听力原文：W: How does your work go in the new company？

M: I can't feel better. The manager says I'll be given a promotion.

What does the man think of his work in the company？

A．The manager asked him to do many important things.

B．He likes his job. But he has to work overtime.

C．He likes his job so much that the manager will give him a promotion.

D．He has done a very good job in the new company. And he will probably get a promotion.

Why does the teacher writethis letter？

A.To help his students learn English．

B.To make his students work harder．

C.To give his students some advice．