Emin olduğunuz yerde soru işareti koyun.
- Where you're sure, put question marks.
Bu cümle soru işaretiyle mi bitiyor?
- This sentence ends with a question mark?
The end of the sentence is missing a question mark.
- Es fehlt ein Fragezeichen am Ende des Satzes.
You need to put a question mark at the end of a question.
- Am Ende einer Frage muss man ein Fragezeichen setzen.