Один пункт нуждается в пояснении. Задайте 5 вопросов (общий, к подлежащему, специальный, альтернативный, разделительный) к этим предложениям : 1. We decorated the room with flags from Russia and UK. 2. We are eating some of the delicious food that we prepared. 3. We sang songs and played lost of games. 4. Our friends gave us some beautiful flowers and wonderful gifts to say goodbye. 

1. Did you decorate the room with flags from Russia and UK? (общий) 2. Do you eat dishes that you prepared yourself or ordered in a cafe? (альтернативный) 3. What did you do? (специальный) 4. Who gave some beautiful flowers and wonderful gifts fo you to say goodbye? (к подлежащему). Your friends gave you beautiful flowers and wonderful gifts as a parting gift, didn't they? (разделительный).