—How much vinegar did you put in the soup? —I’m sorry to say . I forget. A. noB. no oneC

问题补充：

—How much vinegar did you put in the soup?

—I’m sorry to say, . I forget.

A. no

B. no one

C. nothing

D. none

答案：

A. no

B. no one

C. nothing

(答案→)D. none

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 forgot it.