单项选择题

If you try to pass（）the problems, it would be impossible for you to make any progress in this field.

A．off
B．over
C．by
D．across

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单项选择题
If you really want to apply for the dangerous job, I（）in your way.

A．shouldn't have stood
B．wouldn't be standing
C．wouldn't stand
D．couldn't have stood
单项选择题
She was running（）balance, with her feet wrongly positioned.

A．on
B．off
C．in
D．over
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