单项选择题

The real trouble ______ their lack of confidence in their faculty.

A．lies in
B．results in
C．leads to
D．brings about

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单项选择题

A. That’ s a good idea.
B. I see.
C. Travelling.
D. Not at all.
E. So do I.
F. Detective stories.
G. Just a minute.
H. Sure.

单项选择题

A. That’ s a good idea.
B. I see.
C. Travelling.
D. Not at all.
E. So do I.
F. Detective stories.
G. Just a minute.
H. Sure.