1. ______ (夏天) is my favorite season.
2. The students must have six classes every ______ (白天).
3. I can ______ (遇见) a lot of interesting people in England.
4. Sam's father bought him a ______ (新的) backpack.
5. I'll ______ (打开) the windows to have some fresh air.
6. Please give me a piece of ______ (纸) to draw a picture on.