Grandpa is growing old. He keeps on the same thing over and over again.
--Which of the following sentence is right?--I wonder _________.
The factory which I visited yesterday was not the one I once worked.
Many countries, American, Japan, Brazil and Spain wanted to host the 2016 Olympic Games.
―Hurry up. The bus is coming,―Wait a moment. Don’t cross the street the traffic lights are green.
---May we leave the classroom now?---No, you . You to leave until the bell rings.