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_________ the flight to New York will be delayed is _________ I’m especially worried about．

       A．If; what                    B．Whether; that                 

       C．When; that            D．Whether; what

_________ the flight to New York will be delayed is _________ I’m especially worried about．

A．If; what             B．Whether; that           C．When; that         D．Whether; what

 _________ the flight to New York will be delayed is _________ I’m especially worried about．

       A．If; what                                         B．Whether; that

       C．When; that                                        D．Whether; what

 _________ the flight to New York will be delayed is _________ I’m especially worried about．

       A．If; what          B．Whether; that     C．When; that       D．Whether; what

_____ the flight to New York will be delayed is ____ I'm especially worried about.

_____ the flight to New York will be delayed is ____ I'm especially worried about.

A．If; what           B．Whether; that      C．When; that        D．Whether; what

_________ the flight to New York will be delayed is _________ I’m especially worried about.

_________ the flight to New York will be delayed is _________ I’m especially worried about.

________ the flight to New York will be delayed is ________ I'm especially worried about.

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