网址：http://m.1010jiajiao.com/timu_id_4468561[举报]
59. Sorry, I took your pen _____.
A.by heart B. by mistake C. on purpose D. by the way
A．by heart
B．by mistake
C．on purpose
D．by the way
Sorry, I took your pen _____.
A. by heart B. by mistake C. on purpose D. by the way