雅思口語中用于過渡的萬能猶豫句

在口語考試的時候，為了不影響流利渡，同時還不能出現silence挑戰考官的耐心，而且要給自己思考留出喘息之機，我們往往需要一些話來過渡。這個話的長短視你需要思考的時間而定，下面這段大約３０秒：
 

This is a tough question. I have never heard about it, nor have I ever read about it (倒裝句豐富句型）. Now you want me to talk about it. But I don't have too much to say. Give me a few seconds for me to search every piece of information in my head now.
 

它有一個變體，注意：突出標注的部分不同：

This is a tough question. I have never thought about it, nor have I ever read about it (倒裝句豐富句型）. Now you want me to talk about it. But I have too much to say. Give me a few seconds for me to organize my thougth a little bit.
 
你當然還可以自己根據上面的思路去編造一些其它的說法，以免雷同。