问题
选择题
— Where is Tom?
— I last saw him _____ in the library, reading.[ ]
A. be sitting
B. sat
C. seated
D. seating
答案
答案：C
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— Where is Tom?
— I last saw him _____ in the library, reading.[ ]
A. be sitting
B. sat
C. seated
D. seating
答案：C