If I ____ a candle, I would light the world bright.

— What would you do if you _______ a million dollars?— I would give it to charity.

—What would you do if you         the lottery?—I         give half of the money to charities.

 ---What if I have to go there and know nothing about it?--- If I______ you, I would try to find some information about it on the Internet.

Sir, you should__________ at the red light．But you didn’t．