There great changes in our city in the past 10 years. A. wereB. hadC. have beenD. have had

问题补充：

There great changes in our city in the past 10 years.

A. were

B. had

C. have been

D. have had

答案：

A. were

B. had

(答案→)C. have been

D. have had

解析：句意：我们的城市在过去的十年里，已经有了巨大的改变。There be句型表示某处有某物，have表示某人有某物。根据题意，在过去十年中我们城市发生的巨大变化，因此用there be句型完成时态形式，故选C