根据所给的单词、汉语提示或首字母和英文释义写出正确的单词。
1. Look at the birds in the sky. Can you see ________ (they)?
2. He helped a boy________ (call) Daxiao in Sichuan all the time after the earthquake.
3. The supermarket is c_________ at this time of the day.
4. W________ is the fourth day of a week.
5. I can't hear you. Please say it a _________.
6. The tiger has many sharp ________. (牙齿)
7. The sun shines ________ the window. (通过)
8. There are _________ floors in the building. (四十)
9. Mr. Li has a good __________. ( the way he lives)
10. His parents are good _________ (someone who can swim).