问题补充:
As everyone knows, the Diaoyu Islands China since ancient times.
A. belonged to
B. were belonging to
C. have belonged to
D. were belonged to
答案:
A. belonged to
B. were belonging to
(答案→)C. have belonged to
D. were belonged to
解析:belong 无被动语态和进行时态,故排除B和D。钓鱼岛一直是我们中国的,表示过去的某一动作或行为一直持续到现在并且将继续持续下去,故用现在完成时。