单词拼写。

1. His illness a_________ for his being absent from work.

2. I climbed into bed and p____ the blanket over my head.

3. Darwin's t_____ of evolution(进化)is based on the survival of the fittest.

4. The clouds have b_____ out the sun.

5. You must first s______ their permission before publishing their names.

6. The director told the actors that he would shoot the _______(场景)in the morning.

7. The    (混合) of the two drinks tastes good.

8. Can't you see the mountains in the ________(远处)?

9. The garden is ______(围绕) by a high wall.

10. They often ______(聊天) online.