题目内容
When something __________Tom, his mother often __________ him.
A. worries; worries about
B. worries about; worries
C. worries about; worries about
D. worries; worries
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题目内容
When something __________Tom, his mother often __________ him.
A. worries; worries about
B. worries about; worries
C. worries about; worries about
D. worries; worries