题目内容
It is really crazy ________ Peter to let his ________ son swim alone in the river.
A. for; 5 years old B. of; 5 years old
C. for; 5-years-old D. of; 5-year-old
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题目内容
It is really crazy ________ Peter to let his ________ son swim alone in the river.
A. for; 5 years old B. of; 5 years old
C. for; 5-years-old D. of; 5-year-old