摘要： The project is so designed that once nothing can be done to change it. A. starts B. having started C. started D. starting
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The project is so designed that once _______ nothing can be done to change it．
A．starts B．having started C．started D．starting
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The project is so designed that once _______ nothing can be done to change it．
A．starts B．having started C．started D．starting
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The project is so designed that once _______ nothing can be done to change it．
- A.starts
- B.having started
- C.started
- D.starting