问题
选择题
Kate and I ______ doing _______ homework now. [ ]
A. am, their
B. are, their
C. is, our
D. are, our
答案
答案：D
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Kate and I ______ doing _______ homework now. [ ]
A. am, their
B. are, their
C. is, our
D. are, our
答案：D