The play had already been on for quite some time when we at the New Theatre.A. have arri

问题补充：

The play had already been on for quite some time when we at the New Theatre.

A. have arrived

B. arrived

C. had arrived

D. arrive

答案：

A. have arrived

(答案→)B. arrived

C. had arrived

D. arrive

解析：

B。由于句中的had already been用的是过去完成时，而根据句意，arrive显然应发生在其后，故要用一般过去时。全句意为：当我们到达新剧院时，戏已经演了好一会儿了。