【题目】—What ______ you ______? ( )
—I’m playing football.
A.are; do B.are; doing C.do; do
【答案】B
【解析】
略
【题目】—What ______ you ______? ( )
—I’m playing football.
A.are; do B.are; doing C.do; do
【答案】B
【解析】
略
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