-— Do you know?— My sister’s. A. whose dictionary is itB. whose dictionary it is C. who’s

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A. whose dictionary is it
(答案→)B. whose dictionary it is
C. who’s the dictionary
D. who the dictionary is
解析：此题重点考查宾语从句的时态和语序问题，无论哪种句式结构充当宾语从句都要用陈述句语序，从句的时态要和主句的时态保持一致，my sister’s表示所属关系，故引导词要用whose。