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Carl didn't leave the lab ______ he had finished the experiment.
You________ eat anything________ you see the doctor.
直到老师进了教室，学生们才不说话。
The students________ ________ ________ ________the teacher came into the classroom．
直到雨停，我们才回家。
We________ ________home________ the rain________．
(翻译) 直到手术结束后他才回家。
He ______ go home _______ the operation was over.