Don't worry about my illness. What I need is but a few days' rest.
A. anything
B. everything
C. something
D. nothing
网友回答
A. anything
B. everything
C. something
(答案→)D. nothing
解析：D 考查不定代词。句意：不要为我的病担心，我休息几天就好了。nothing but是固定短语，意为“仅仅，只不过”，符合语境。anything but意为“根本不，决不”。故答案选D项。