these story books are very useful to children.改为同义句these story bo_英语解答

these story books are very useful to children.改为同义句
these story books—— —— —— to children.

人气：164 ℃　时间：2020-04-03 22:12:44

解答

你好,
为你解答,正确答案为：
help a lot很有帮助
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