单项选择题

The directors will meet tomorrow, ______the schedule is changed.

A．if
B．but
C．unless
D．or
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单项选择题
With so many eyes ______on him, he was too nervous to speak.
A．fixed
B．fixing
C．to fix
D．being fixed
单项选择题
The grain output is ______this year than that of last year.
A．higher 5 percent
B．5 percent more higher
C．more 5 percent higher
D．5 percent higher
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