单项选择题

The new manager has greatly changed the company ______ he took over the position.

A．if
B．since
C．although
D．while
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单项选择题
I agree to the idea ______ our staff should use recycled (再生的) paper to save money.
A．what
B．as
C．which
D．that
单项选择题
10（）

A．Very strict.
B．Very nice.
C．Very humorous.
D．Very shy.
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