Do not cry ..... spilt milk.

Question: Do not cry . . . . . spilt milk. This question tests your knowledge of common idioms in English. The idiom "Don't cry over spilt milk" means don't be upset about something that has already happened and cannot be changed. It's about accepting a situation you can't fix and moving on. Let's look at the options: Option A: on - This doesn't make sense in this context. Option B: over - This is the correct option. "Cry over" means to be upset about something. Option C: about - While you can cry *about* something, "cry over spilt milk" is the established idiom. Option D: for - This also doesn't fit grammatically or idiomatically. Therefore, the correct answer is Option B: over because it completes the well-known idiom.