I am tired after the long walk.I want to have a __.
After running a 1000-metre race, he was________.
The country life he was used to ____ greatly since 1992.
In our school library there_______ a number of books on science, and in these years the number of them_______ growing larger and larger.
The rivers will become dirtier and dirtier________ we take action to protect them.
I’m sorry to hear that quite two people died _______ the earthquake at the beginning, but later still more died ________ the diseases after the quake last year.