I. Make the sentences interrogative: 1. Entering the room, I heard a talk about allowance. 2. Arriving in Manchester, they made a repeat order. 3. When discussing the topic "Economic Relations", she used many new words. 4. When settling prices, they understood each other. 5. When studying at the University at the economics faculty, Paul published several scientific articles. 6. While waiting for you, I read the article about recipient and aidgiving countries.