______ 决定个体是否愿意完成某些任务，即决定行为的选择。 ( )
A．能力
B．道德
C．态度
D．情绪
参考答案：C
Play, often ______ as an activity for younger children, is still important in the social development of teenagers.
A．to see
B．seeing
C．seen
D．to be seen
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