单项选择题

Although it was his first experience as chairman, he（）over the meeting with great skill.

A. presided
B. administered
C. mastered
D. executed

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单项选择题
The reception was attended by various （）members of the local community and representatives of regional industries.

A. protuberant
B. conspicuous
C. prominent
D. projecting
单项选择题
In the past 10 years, the company has gradually （）all of its smaller rivals.

A. engaged
B. occupied
C. monopolized
D. absorbed
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