单项选择题

The（）improvement in her typing has made her boss very pleased.

A. distinct
B. distinctive
C. distinguished
D. distinguishing

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单项选择题

Our （）were turned down without any discussion at the meeting.

A. prepositions
B. propositions
C. advices
D. proposes

单项选择题

Fire crews have been operating at full （）.

A. run
B. length
C. stretch
D. end

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