根据句意及首字母提示完成单词。 1. There aren't a_____ students in the room. 2. The tall b_____ is a hotel and there are a lot of rooms in it. 3. There is a big g_____ in our school and we often play basketball in it. 4. —Where's my s_____ book? —It's in the lab. 5. Don't sit in f_____ of me. I can't see the blackboard.