单项选择题

What does federal law require

A．WBST must preview commercials before broadcasting.
B．Broadcasters are responsible for making commercials.
C．Payment for all broadcasting must be paid in U.S. dollars.
D．The government must screen all commercials.

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单项选择题

What is the purpose of the letter written by Albert Mills

A．He was asked by Mr. Hargrave to put a bid in writing.
B．He wants to know the prices of lots #,-4415 and #4718.
C．He needs to find the name of an architect in Greenwich.
D．He is selling Mr. Hargrave his home in Amherst.

单项选择题

How long will the race last

A．Less than four hours
B．More than four hours
C．At least five hours
D．At least eight hours