Be more careful!Don't make any ___(mistake) in your writing.

问题描述:

Be more careful!Don't make any ___(mistake) in your writing.

错了, any 是任何一..的意思,跟在後面的是单数.
例: anyone, anybody, any person, any man, any woman, any day... 等等.
所以答案是 mistake 没有 S.
Be more careful!Don't make any _mistake_ in your writing.