1．It is a kind of pain that goes beyond ________ (描述)．
2．The disappearance of ________ (恐龙) 65 million years ago isn't a mystery now. 3．I don't want to ________ (争议，争论) with you—just do it!
4．The interviewer will put you under ________ (压力) to see how you react.
5．People are concerned about the quality of the air they ________ (呼吸)．
6．I'm proud of having a group of highly ________ (聪明的) students.
7．The audience threw flowers onto the ________ (舞台)．
8．Some students may have b________ in their stomachs while taking an exam.（蝴蝶）
9．Destruction of the environment is one of the most serious c________ we face.（挑战）
10．I felt really n________ when introducing myself in front of the class.（紧张）
