单项选择题

I didn't ______ that these days he was especially busy.

A．pay attention to
B．notice
C．recognize
D．guess
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单项选择题
She appreciated the ______ I gave her after she failed the test.
A．stimulation
B．enthusiasm
C．encouragement
D．motive
单项选择题
The thieves ______ with one another about how to divide the jewels.
A．discussed
B．debated
C．quarreled
D．spoke
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