-Excuse me.How long can I keep the book?
-You can return it by the end of this month.
A. give it away
B. e up with it
C. give it back
D. lend it again
网友回答
A. give it away
B. e up with it
(答案→)C. give it back
D. lend it again
解析：return“归还”，意思同“give…back”。