单项选择题

According to the man, how do some bees use their sense of smell

A．To find their way back to the nest.
B．To locate plant fibers.
C．To identify kinds of honey.
D．To identify relatives.
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单项选择题
Why was the man worried at first
A．He couldn't decide on a topic for his paper.
B．He thought his paper was late.
C．He hadn't heard from his family in a while.
D．He thought the woman had been ill.
单项选择题
What will the man probably do over the weekend
A．Visit his parents.
B．Write a paper.
C．Observe how bees build nests.
D．Plan a family reunion.
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