单项选择题

The passage tells us that children are the most curious when they are about __________.

A．fours years old
B．six years old
C．one year old
D．two years old
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单项选择题
The writer wants us to understand that a child__________.
A．has to be taught how to play
B．likes a toy
C．matures through play
D．can grow up with toys
单项选择题
Toys have several functions except__________.
A．helping children to play
B．urging children to play
C．recommending ways for children to play
D．asking children to play
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