单项选择题

The young trees ______ before they grow up.

A．must be taken good care of
B．may take good care of
C．should taken good care of
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单项选择题
I'm very thirsty, please give me ______ to drink.
A．something
B．anything
C．everything
单项选择题
In the office you will see the sign ______ .
A．No Parking
B．No Photos
C．No Smoking
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