What does the professor offer to do？
A. Read a draft of the report before she submits it
B. Help her find some better references
C. Show her how to complete the experiment
D. Give her a job in the laboratory
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
According to paragraph 6, what was the result of adding a second and a third actor？
A. Playwrights were able to act in their own plays.
B. The audience could understand the story more easily.
C. The action could take place in more than one scene.
D. The actors became more important than the chorus.
The phrase Still others in paragraph 3 refers to
A. students from New York University
B. eighth-floor workers
C. ninth-floor workers
D. routes of escape
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