根据汉语提示完成句子。

1.It that your__________ (戒指)?

     No, it isn't.

2. Please__________ (打电话给)John this after- noon.

3. My__________ (手表)is on the desk.

4. Excuse me. Is that your__________(电脑)?

5. Write it down in your__________ (笔记本).

6. Is that your__________ (棒球)in the lost and found case?

7. John and Kelsey are in the same__________ (学校)

如图所示两款书包，从舒适的角度考虑，应该选购_________图书包。因为压力一定时，书包带越宽书包对肩膀的压强越________，人感觉越舒适。