be perplexed for an answer造句

In the letter , she said : we were perplexed for an answer at the time when the project initiated in pengzhou . until we participated in the week - long supply chain management training conducted by sfagm project at zhejiang university , the fire of our hope burned up , the door of our heart opened , we started developing the market bravely
信中說道: “時值中加項目啟動之初，也是我們企業迷惘之時，直至中加項目在浙江大學舉辦為期一周的供應鏈管理培訓，企業的希望之火終于燃燒起來，心門敞開起來，我們勇敢地走進了市場” 。
It's difficult to find be perplexed for an answer in a sentence. 用be perplexed for an answer造句挺難的