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单选题
Which of the following could be used as a motivation to do our assignments?
A
Remembering our urgent tasks.
B
Any activities we’re eager to do.
C
Taking a break in the afternoon.
D
The promise to study efficiently.
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参考解析
解析：
细节题。根据题目要求定位至标题4第五段。根据“been dying to...waiting all week to challenge your friend to”等可以判断，我们想做的事情可以成为我们的刺激物，激励我们，选B。A项文中没有提及；C项是标题5的内容，与本题无关；D项是对文章内容的曲解。
细节题。根据题目要求定位至标题4第五段。根据“been dying to...waiting all week to challenge your friend to”等可以判断，我们想做的事情可以成为我们的刺激物，激励我们，选B。A项文中没有提及；C项是标题5的内容，与本题无关；D项是对文章内容的曲解。
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The promise to study efficiently.
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