Wir sprechen ___ das Problem.
Answer and explanation
Correct answer: B. über
- Step 1: 'sprechen über' + accusative introduces the topic of a discussion. Answer: über. Why not the others: 'von' is possible in a different sense and 'an' and 'für' do not fit.
Practise more Grammatik: Präpositionen und feste Verbindungen.
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