15. (单选题) What a careless boy! He _____ his work so soon.(本题1.5分) A、 can’t finished B、 couldn’t finish C、 can’t have finished D、 must have finished

15. (单选题) What a careless boy! He _____ his work so soon.(本题1.5分)
A、 can’t finished
B、 couldn’t finish
C、 can’t have finished
D、 must have finished

出自：漯河职业技术学院大学英语2(高起专).

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