26. When the bookstore, they saw an advertisement reading “If you buy three books at a ti

发布时间：2020-08-15 02:29:54


26. When      the bookstore, they saw an advertisement reading “If you buy three books at a time, you’ll receive a fourth one as a     .”
A. going into; reward    B. going into; bonus C. went; favour    D went; honour

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