单项选择题

A．He can’t find enough information for his research paper.
B．He can’t sleep at night.
C．He can’t find a quiet place to study.
D．He can’t narrow down his research topic.
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单项选择题
A．She’d like a ride to the science building.B．She’ll give the man a ride to the library.C．The library is far from the science building.D．It’s a very long walk to the library.
A．She’d like a ride to the science building.
B．She’ll give the man a ride to the library.
C．The library is far from the science building.
D．It’s a very long walk to the library.
单项选择题
A．It’s useless.B．It’s unnecessary.C．It’s doubtful.D．It’s helpful.
A．It’s useless.
B．It’s unnecessary.
C．It’s doubtful.
D．It’s helpful.
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