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whenhavetheyfinishedthework时态哪里不对
whenhavetheyfinishedthework时态哪里不对
1回答
2020-12-1414:12
whenhavetheyfinishedthework时态哪里不对
whenhavetheyfinishedthework时态哪里不对
when不能用于完成时,可以改为:
Whendidtheyfinishthework?他们什么时候完成工作的?