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All he preparations for the task _____, and we are ready to start.

  A. completed                              B. to be completed   

  C. are to complete                       D. have been completed

All the preparations for the task ________, and we are ready to start.(NMET2000春招)

A. completed　　　　 B. complete　　　 C. had been completed D. have been completed

All the preparations for the task ________, and we are ready to start.

[　　]

A．completed

B．complete

C．had been completed

D．have been completed

All the preparations for the task ________, and we are ready to start.

[　　]

All the preparations for the task _________. and we are ready to start.

[　　]

A．completed

B．complete

C．had been completed

D．have been completed