问题描述：
The children are not old enough to take care of____.
a.them b.themselves. c.himself d. they选那个?能帮我解答一下这题吗?四个答案的意思.
a.them b.themselves. c.himself d. they选那个?能帮我解答一下这题吗?四个答案的意思.
问题解答：
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