When the big bills for mother's hospital care came, father was glad he had money in the bank to _____.
A.fall short of
B.fall through
C.fall back on
D.fall in with
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C解析 本题译文：母亲在医院就医的各种帐单送来时，父亲高兴的是他可用银行里的存款来支付。fall back on求助于。fall short of没达到，低于：1)He fell short of what we had expected.(他没有达到我们的期望。) 2)The measures proposed fall far short of what is required.(所提出的这些措施远没达到需要的目标。)fall in with与......一致，符合；同意，赞成，支持。Fall through落空。