-My son are five years old,and I want to buy him some books,please.-OK.These books are _____kids.
问题描述：
-My son are five years old,and I want to buy him some books,please.-OK.These books are _____kids.
-My son are five years old,and I want to buy him some books,please.
-OK.These books are _____kids.
用适当的介词填空,补全句子
答
for
有不明白的地方再问哟,祝你学习进步,更上一层楼! (*^__^*)为什么不是about？be动词后面可以加for的吗？谢谢about表示关于，意思是，这些书是关于孩子的书，不太合适，for表示适合，为了的意思be后面可以加介词的eg：You expect that the advice will be in your best interest.你期望这个建议将会对你产生最好的影响。