The moment the 28th Olympic Games open, the whole world cheered. A. declared B.

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

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

试题答案

D

考查时态和语态。通过the whole world cheered可以看出本题用一般过去时，另外比赛应该由某人宣布开始，这里只强调宣布的动作。