问题
单项选择题
—How much vinegar did you put in the soup
—I'm sorry to say, ______. I forget.
A. noB. no one
C. nothing D. none
答案
参考答案：D
解析： 本题考查不定代词的本意区别及其与语境综合运用。此处none指的是not any vinegar，也就是说，此处可以这样理解：I'm sorry to say that I didn't put any vinegar in the soup, because I forget it. 故选D。