单项选择题

The catering unit ______ that all patrons complete the questionnaire so that we can provide the best possible service at the most reasonable cost.

A. assures
B. questions
C. requests
D. understands
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单项选择题
Before adding new stocks ______ your investment portfolio, why not attend one of our investment seminars, where you will be able to meet our consultants in a small group setting
A. at
B. to
C. for
D. with
单项选择题
The CEO of Griffin Investments said today that he had absolutely no hesitation in ______ that his company had always operated within strict, ethical guidelines.
A. affirming
B. completing
C. orienting
D. expanding
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