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).

对由甲氨蝶呤所引发的贫血者，宜合并应用（）

A．叶酸+维生素B₁₂

B．富马酸亚铁

C．维生素K₁

D．去铁胺

E．亚叶酸钙