19、All the students______________ in the chemistry lab with their eyes_________ the teacher.
A. are seated; watching carefully B. sat; carefully watching
C. seat; watched carefully D. sit; carefully watched
19、B
科目：高中英語 來源： 題型：
All the students______________ in the chemistry lab with their eyes_________ the teacher.
A. are seated; watching carefully B. sat; carefully watching
C. seat; watched carefully D. sit; carefully watched
科目：高中英語 來源： 題型：單選題
科目：高中英語 來源：河南省開封市2009屆高三第一次模擬考試 題型：單項(xiàng)填空
All the students______________ in the chemistry lab with their eyes_________ the teacher.?
A. are seated; watching carefully B. sat; carefully watching?
C. seat; watched carefully D. sit; carefully watched
科目：高中英語 來源：河南省開封市2009屆高三年級(jí)第一次模擬考試、英語試題 題型：014
All the students ________ in the chemistry lab with their eyes ________ the teacher．
A．are seated; watching carefully
B．sat; carefully watching
C．seat; watched carefully
D．sit; carefully watched
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