We can infer that the plumbing ______ at that time.

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We can infer that the plumbing ______ at that time.

A. cost little

B. was more expensive than a water system

C. was too expensive for every family to afford

D. was not necessary

参考答案:

C55.答案为C。根据第三段第二句,But that depended on whether there was a water system where they lived and on whether they could afford the plumbing。