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---- Why was the official meeting called?              ---- ______ new officers.

     A. Select             B. Selecting          C. To select           D. For selecting

---- Why was the official meeting called?              ---- ______ new officers.

— ________ new officers.

A．Select

B．Selecting

C．To select

D．To have selected

—Why was the official meeting called?

— ________ new officers.

A．Select

B．Selecting

C．To select

D．To have selected