having been +V-ed 和v-ed做状语的区别Not having completed the programme,they have to stay there for another two weeks.when completed ,the museum will be open to the public next year.这里的completed 和having completed 可以互换吗?都是
来源:学生作业帮助网 编辑:作业帮 时间:2024/11/15 20:01:03
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