单词拼写
His illness a_________ for his being absent from work.
I climbed into bed and p____ the blanket over my head.
Darwin’s t_____ of evolution(进化)is based on the survival of the fittest.
The clouds have b_____ out the sun.
You must first s______ their permission before publishing their names.
The director told the actors that he would shoot the _______(场景)in the morning.
The 　　　　(混合) of the two drinks tastes good. 
Can’t you see the mountains in the ________(远处)？
The garden is ______(围绕) by a high wall.
They often ______(聊天) online.