题目内容
The training course ______ to introduce you to the security check at the Airport. (2019-06)
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It has been quite some time since we _______ you at your office in Beijing. (2019-06)
Our clients (surprise)_____________ by the level of support we can offer in such an efficient way. (2016-12)
When they entered the area, the visitors (require)_____________to turn off their smart phones. (2017-12)
Training new staff should ( conduct)_____________ as soon as possible after they are hired. (2018-06)
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