I like such houses with beautiful gardens in front but I don’t have enough money to buy .

问题补充：

I like such houses with beautiful gardens in front, but I don’t have enough money to buy .

A. it

B. one

C. that

D. this

答案：

A. it

(答案→)B. one

C. that

D. this

解析：it特指上文出现的那一个；one 泛指同类中的一个；that 那个；this这个。句意：我喜欢前面带花园的房子，但是我没有足够的钱买一座。泛指一座这样的房子。所以选B。