单项选择题

As a teenager, Mary sent newspapers in the morning, worked in a restaurant in the afternoon, and ______ in the evening.

A．typing for her mother
B．had typed for her mother
C．typed for her mother
D．to type for her mother
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She appreciated the ______ I gave her after she failed the test.
A．stimulation
B．enthusiasm
C．encouragement
D．motive
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The table was described as a beautiful ______ of furniture.
A．object
B．manufacture
C．thing
D．piece
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