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39。s D. No, it39。s mine ( )3.—Are these books ________? —Yes, ________ are. A. your。 they B. yours。 they C. your。 these D. yours。 these A Section A (3a- 3c) B ( )4. Those keys are ________. They are not ________. A. mine。 her B. hers。 your C. hers。 mine D. mine。 their ( )5.—Whose Tshirt is this? Is it Sally39。s? —No, it isn39。t. ________ is white. A. My B. Mine C. Her D. Hers C Section A (3a- 3c) D Ⅳ .根據(jù)漢語意思完成句子,每空一詞 1. “那是什么? ”“它是一把直尺。 ” —________ that? —It39。s a ___