Passage One
Questions 26 to 28 are based on the passage you have just heard.

A．How to measure metals.
B．A standard unit for measuring weight.
C．The price of precious metals.
D．How to use the metric system.

A．The style of woman’s sweater can be seen everywhere.
B．The man saw Jill wearing the sweater.
C．She has never worn the sweater before.
D．She seldom borrows Jill’s clothes.