—Doyoufinishthework? —No,butwe’llkeepon            unti...

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问题详情:

—Doyoufinishthework? —No,butwe’llkeepon            unti...

—Do you finish the work?  —No, but we’ll keep on             until we make it.

A. failed       B. failing       C. tried         D. trying

【回答】

D

知识点:动词和动词短语

题型:选择题

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