—I'm afraid I can't return the book to you before Friday.

—________.[ ]

A. Don't be afraid  

B. Be careful

C. Not at all  

D. Take your time

下列词语中，没有错别字的一组是[ ]

A．诡密  扁桃体  结草衔环  夙兴夜寐   

B．蛰伏  联锁店  茕茕孑立  数典忘祖   

C．给力  精气神  沽名钓誉  相题并论   

D．缧绁  百叶窗  焚膏继晷  平心而论