单项选择题

When the manager went to Canada on business, his () took over all his duties.

A. caretaker
B. officer
C. deputy
D. commander

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单项选择题

Mrs. Wilson works more slowly than the other secretaries because she takes pride () everything that she does.

A. in
B. of
C. to
D. on

单项选择题

The new aircraft ()its tests very well.

A. experienced
B. hurried
C. supported
D. underwent

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