-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.

题目
-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
答案
举一反三
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