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 ii

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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.

单项选择题What is the relationship between the speakers

A．They're classmates.
B．They're roommates.
C．They're cousins.
D．They're lab partners.