Suddenly they noticed a house with two big trees in front of it.A. to standB. standingC.

问题补充：

Suddenly they noticed a house with two big trees in front of it.

A. to stand

B. standing

C. standed

D. stands

答案：

A. to stand

(答案→)B. standing

C. standed

D. stands

解析：考查with复合结构。本题中with的宾语two big trees与动词stand构成主动的关系，故使用现在分词做宾语补足语。句意：突然他们注意到一个前面有两个大树的房子。故B正确。