Once you started ,you should never give up .start加ed吗
问题描述：
Once you started ,you should never give up .start加ed吗
答
要,因为有时动词-ed形式前可加连词when,while等来强调时间概念.Once recovered,he went all out to do his work.一恢复健康他就全力以赴地干起了工作.
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