1. The mountaineers who had been trapped by the avalanche were very lucky _____________ by the rescue team within an hour. A. to have found B. to be found C. to have been found D. to being found 2. As the students who had taken the university entrance exam were waiting for the results _____________ , they seemed _____________ more and more nervous. A. having been announced / to have gotten B. to be announced / to be getting C. announced / to have been gotten D. to be announced / to have been getting