题目内容
When I entered the room, I found Mary ______ at the desk ______ her homework.
A. sat; doing B. sitting; to do
C. seating; to do D. seated; doing
【答案】
D
【解析】 略
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题目内容
When I entered the room, I found Mary ______ at the desk ______ her homework.
A. sat; doing B. sitting; to do
C. seating; to do D. seated; doing
D
【解析】 略