—The bell rang for a long time. Why not answer it?—I ______ taking a bath on the second floor. [ ]A.
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题目简介
—The bell rang for a long time. Why not answer it?—I ______ taking a bath on the second floor. [ ]A.
题目详情
—I ______ taking a bath on the second floor.
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B. was
C. were
D. are
答案