—Now that you like the house with a garden, why not buy it? —Well, I can’t afford house a

—Now that you like the house with a garden, why not buy it?
—Well, I can’t afford house at present.
A. that expensive a
B. a such expensive
C. that an expensive
D. a so expensive

(答案→)A. that expensive aB. a such expensiveC. that an expensiveD. a so expensive解析：that在用作副词，用法相当于so，意为“如此，这么”。

回答的不错