They will not start the project until the board chairman ___

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They will not start the project until the board chairman ____back from South Africa.
A.will come B.is coming C.came D.comes

D 主席没有从南非回来以前,他们不会开工.
将来时+until引导的条件从句,时态向后退一格；主句将来时的话,until后用一般现在时
再问：将来时+until引导的条件从句，时态向后退一格？有这种说法吗？
再答：我是具象的说法，正常的说就是如一楼那般：一般讲来时的条件从句应该使用一般现在时很好理将来预期的结果（即主句是将来时）+条件（那么这个条件一定在这个结果之前，所以时态退一个）

They will not start the project until the board chairman ___ 48.They will not start the project until the board chairman ( ) they will start the project has not been decided yet.A.W They will start their project ____at helping the poor childr chairman of the board这个board是什么? They will not leave until the rain stops.什么意思? Chairman of the Board of Directors是什么意思? 请问Chairman of the board怎么翻译? 1.We _____ too early.The show will not start until 8 p.m. They didn’t start until the rain stopped.它的not until 的强调句是怎样 They didn’t start until the rain stopped. The students can not decide when they will start.同义句