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).