--David, are you 1istening to me?---Sorry, Dad. I _______ to make sense of what the reporter said. 

--- How are our team playing?--- They are playing well. But unluckily one of them hurt.

―Why? Where is my cellphone?―Dear me! You _______ it in the taxi！

Do you know the thief_______by the police.

-Why does the Lake smell terrible? -Because large quantities of water       .