Dutch never combines a preposition with "wat" or "welk ding" for a thing — instead, the preposition glues onto "waar", as in "waarover" or "waaraan".
Collega: , . ?
Manager: .
Anna: ?
Bram: , .
Anna: Heb je het artikel al gelezen?
Have you read the article yet?
Vul het ontbrekende woord in:
Yes, that's exactly what I wanted to speak with you about.
“Waarmee kan ik u helpen?”
Good afternoon, you're speaking with Anna from InternetPlus. How can I help you?
“Waar is de badkamer?”
Where is the bathroom?
“Waar is de supermarkt?”
Excuse me. Where is the supermarket?
“Waar kan ik het medicijn ophalen?”
Thank you. Where can I pick up the medicine?
“Vertel eens, waar kom je vandaan?”
Nice to meet you, Aisha! Tell me, where are you from?