问题
选择题
Peter's father asked him to spend his time on something________researching into instead of playing all the time.[ ]
A. worthy
B. valuable
C. worth
D. precious
答案
答案：C
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Peter's father asked him to spend his time on something________researching into instead of playing all the time.[ ]
A. worthy
B. valuable
C. worth
D. precious
答案：C