What is the lecture mainly about？
A．Provisions of the Homestead Act
B．How to construct a log cabin
C．Frontier homes in the West
D．Early construction materials

Where would this passage most likely appear？
A．In a magazine specifically for women.
B．In a restaurant and hotel guide.
C．In a news magazine.
D．In a journal for top-ranking businessmen and women.

听力原文：Most people I know are interested in the proposed tax reform. being debated in the congress, because they hope it will lower taxes for them.
（25)
A．Most of them are from low-income belies.
B．Most of them are in favor of a tax cut.
C．I know the Congress will veto the tax reform.
D．I propose the tax reform. be debated in the Congress.

A．It was cold.
B．It was a failure.
C．I'm very happy.
D．She is shy enough.

Why are bacteria being used in the research study at the university？
A．Bacteria have unusual cell formations.
B．Bacteria live harmlessly on the skin.
C．Bacteria are similar to other life forms.
D．Bacteria cause many diseases in humans.

Which two characteristics are common in bacteria？ Click on 2 answer choices.
A．They have one cell.
B．They are harmful to humans.
C．They reproduce quickly.
D．They die when exposed to air.