单项选择题

______ is prohibited near gasoline.

A．No smoking
B．Smoking
C．Working with electric power tools
D．A wet extension cord
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单项选择题
We should ______ before starting lawn and garden work somewhere.
A．walk around the area
B．remove any objects that could damage equipment
C．wear hearing protection
D．Both A and B.
单项选择题
What is NOT appropriate for you to wear in the work environment
A．Long pants.
B．Long-sleeved shirts.
C．Close-fitting clothes.
D．Loose jewelry.
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