单项选择题

A．Go to summer school.
B．Take a vacation,
C．Stay at home.
D．Earn some money,
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单项选择题
The author advises parents ______.
A．to take medicines before children
B．to avoid taking drags in front of children
C．to throw away old medicines
D．to teach children about medicines
单项选择题
What are side effects according to the passage
A．Withdrawal symptoms.
B．Overdoses.
C．Certain effects other than intended ones.
D．Sidewalk effects.
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