20.There useda post office at the corner of the street.A. to beB. to beingC. to haveD. to

发布时间：2020-08-15 02:51:54


20.There used    a post office at the corner of the street.
A. to be
B. to being
C. to have
D. to having

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(答案→)A. to be
B. to being
C. to have
D. to having
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