单项选择题
She was（）what she had written so as to make the theme stand out more clearly.
A.repairing B.revising C.remedying D.reforming
单项选择题 No effective（）has been found for this fatal disease which claims thousands of lives each year.
单项选择题 That's really typical（）John. He says he'll come but he never turns up.
单项选择题 In Britain people（）four million tons of potatoes every year.
