单项选择题

What are students expected to do before attending a class

A．Go over the lessons thoroughly.
B．Understand the textbooks well.
C．Do the reading assignments.
D．Prepare an outline for discussion.
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单项选择题
The women and children were ______ from the burning building.
A．stole
B．filed
C．hide
D．rescued
单项选择题
Complicated work requires a ______ person to carry it out.
A．careless
B．hostile
C．patient
D．casual
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