____ the flight to New York will be delayed is _____ I’m especially worried about．
| A．When; what | B．Whether; that |
| C．When; that | D．Whether; what |
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____ the flight to New York will be delayed is _____ I’m especially worried about．
| A．When; what | B．Whether; that |
| C．When; that | D．Whether; what |
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