单项选择题

They went （） the schedule for the conference again and again until they felt satisfied with every detail of it.

A. out
B. up
C. over
D. by

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Schools should teach our kids various subjects, and moreover teach them how to （） right from wrong.

A. run
B. take
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It is very （） of you to arrange an early meeting between your boss and our team.

A. considerate
B. considerable
C. considering
D. considered

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