问题标题：
【Mustigivethedictionarybacktothelibrarynow?No,you_____.Youcan_____itforanothertwoweeksA.needn'tborrowB.needn'tkeep写出原因】
问题描述：
Mustigivethedictionarybacktothelibrarynow?
No,you_____.Youcan_____itforanothertwoweeks
A.needn'tborrowB.needn'tkeep写出原因
陈禹年回答：
B
keep可用于持续的动作,因为后面有foranothertwoweeks
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