题目内容
________ with teens who spend much of their free time in front of TV sets, those who are physically active often have better grades.
A. Compared B. To compare
C. Comparing D. Having compared
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题目内容
________ with teens who spend much of their free time in front of TV sets, those who are physically active often have better grades.
A. Compared B. To compare
C. Comparing D. Having compared