Before the final examination, many students have shown ______of tension. Some have trouble in sleeping while others have lost their appetite.
A.anxiety
B.marks
C.signs
D.remarks
答案:C
词义辨析。A焦虑;B痕迹,标志;C迹象;D言辞;谈论,评论;结合句意可知C正确。句意:在期末考试前,很多学生都表现出紧张的迹象。一些学生睡不着而其它一些人吃不下饭。