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将下列句子改成现在完成时态,急

来源:学生作业帮 编辑:作业帮 分类:英语作业 时间:2024/05/22 03:36:27
将下列句子改成现在完成时态,急
1、the film began five minutes ago
the film ______ _______ _________ for _________ ______________
2 Mr.Liu become a teacher in 2000
Mr.Liu ________ _________ a teacher for __________ ___________
has been on five minutes
has become ten years
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