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Back up before the students board the bus.
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Let the students board the bus and then back up.
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Let half the students board the bus and then back up toward the other half of the students.
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Tell the students to wait at the stop and then back toward the stop.
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15/40.
15.
If you must back up at a student pick-up point, you should:
Answer correctly : 0 | Wrong : 0
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