Walk the house and you’ll see a big tree on your left.A. passB. pastC. behindD. at

问题补充：

Walk the house, and you’ll see a big tree on your left.

A. pass

B. past

C. behind

D. at

答案：

A. pass

(答案→)B. past

C. behind

D. at

解析：pass可用作动词和名词，经过；past过去，越过，过去的；behind 介词，在后面；at在一点。句意：走过这所房子，你就会在你的左边看到一棵大树。结合语境可知past用作介词，表示经过的含义，故选Ｂ。