1．Hastily, she picked out two books________， without looking at the titles.
A．at peace B．at ease
C．at random D．at least
答案：C 本题题意：她在匆忙中胡乱拿了两本书，连书名也没看。at random表示“随意地；胡乱地；任意地”。
2．The professor's lectures were so abstruse that students tended to________them.
A．avoid B．avoiding
C．being avoided D．be avoided
答案：A 本题题意：这个教授的课如此深奥以致于学生们常常逃课。attend to do sth 表示“往往会……；常常会……”。
