21．She went through a period of emotional _______ after her company fell into ruins and she finally decided to find a new job.
A. control B. adjustment C. outburst D. improvement
22．I've got two invitation tickets for the _______ of the American movie “The Big Country”.
A. performance B. preview C. certificate D. publication
23．The European Central Bank yesterday _______ the document was genuine but refused to make any further comment.
A. expected B. suggested C. concluded D. confirmed
