I 'll return the book back as soon as I can 改错

I 'll return the book back as soon as I can 改错
I 'll return the book back as soon as I can 改错

I 'll return the book back as soon as I can 改错
这里应该把back去掉.
因为return已经有归还的意思了,再加back就重复了.
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I'll return the book as soon as I can 或 I'll give the book back as soon as I can.
return 已经有“还”的意思了，不用再加一个“back”。