问题
选择题
This dictionary is _____ to my reading, but that one is __________.
A．great help; helpless
B．a great help; of no use
C．important; of few importance
D．very helpful; of no any use
答案
答案：B
"is___to"所以横线上应该填一个名词，倘若＿后是介词＂for"则应填一个形容词．所以答案是"a great help"；"of no use "中的“no"后面不能再加 ＂any" 因为"no"本身就相当于＂not any"或"not a "的意思。"be of no use"也就是"be not useful" 是一个固定搭配.所以答案是"B"