18．If you've lost it, you must it. A．spend B．pay for C．took D．cost——青夏教育精英家教网—

摘要：18．If you've lost it, you must it. A．spend B．pay for C．took D．cost

网址：http://m.1010jiajiao.com/timu3_id_2828727[举报]

I think if you’ve lost the library book, you must ________ it．