Hola Johan
That is what the sentence in the lesson is saying, unless you mean it should have question marks? Is that what you meant?
We don't need question marks here as it is a request using the imperative. I know it may sound a bit rude for English speakers to make a request like that, but it is totally normal in Spanish. It is literally saying: "Give me a bit of water, please", but the English translation used is the one that you would use in English as a polite request, with "Can you, Could you...?". This is why you see question marks in the English but not in the Spanish.
Hope this helps
Un saludo
Inma
