All the preparations for the task and we’re ready to startA. completedB. completeC. had

问题补充：

All the preparations for the task , and we’re ready to start．

A. completed

B. complete

C. had been completed

D. have been completed

答案：

A. completed

B. complete

C. had been completed

(答案→)D. have been completed

解析：考查时态及语态。句意：对于这个任务所有的准备已经完成了，并且我们准备开始。根据语境动作是从过去一直持续到现在刚刚完成，且表示被动，所以用现在完成时的被动语态，选D。