The moment the 28th Olympic Games______open,the whole world cheered.

A.declared                                                B.have been declared

C.have declared                                         D.were declared

The moment the 28th Olympic Games ________ open, the whole world cheered.

  A. declared                       B. have been declared

  C. have declared                D. were declared

The moment the 28^th Olympic Games _____ open, the whole world cheered.

A. declared                                               B. have been declared    

C. have declared                                            D. were declared

The moment the 28th Olympic Games ________ open, the whole world cheered.

A. declared            B. have been declared　　 C. have declared              D. were declared

 The moment the 28th Olympic Games ________ open, the whole world cheered.

A. declared            B. have been declared     C. have declared              D. were declared

 The moment the 28th Olympic Games________ open, the whole world cheered.

  A. declared                              B. have been declared

  C. have declared                          D. were declared

The moment the 28th Olympic Games _______ open, the whole world cheered.
A. declared   B. have been declared  C. have declared      D. were declared