单项选择题

The passage tell us that children are the most curious when they are about ______.

A. four years old
B. six years old
C. one year old
D. two years old
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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
单项选择题
The passage is about ______.
A. the importance of education
B. the importance of play

C. the children's speech development
D. the relationship between play and study
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