So necessary it to learn about their customs that I will attend a special lecture next week.
A. I have found
B. I feel
C. have I found
D. will I feel
网友回答
A. I have found
B. I feel
(答案→)C. have I found
D. will I feel
解析:考查倒装句。句意:了解他们的风俗习惯我感觉是那么的有必要以至于我下周将去听一篇专门的报告。本句是一个结果状语从句:so ….that …如此。。。以至于。。。,因为So 位于句首构成不完全倒装,排除A和B,D时态不对,因为feel感觉是系动词,是没有将来时的,所以C正确。