1. It is u__________ that American Basketball Team lost the final game.
2. October 1st is an u__________ day because it’s the birthday of China.
3. The Red Cross is a s__________ group.
4. That is a__________(完美的)plan.
5. What’s the__________(主题)of the class meeting?
答案: 1. unbelievable 2. unusual 3. social 4. perfect