题目

Mary is very clever and_____ worth teaching , but her brother is not .Look he is now _____ asleep in class. A. very ; very         B. much ; very       C. well ; very      D.well ; fast 答案：D 解析:     题意：玛丽很聪明，很值得教，但是她的弟弟不。看他正在课上熟睡呢。be well worth doing sth. 很值得干某事；fast asleep 熟睡。