The sign “NoSmoking” can be seen ____.

The speech by the mayor of Shanghai before the final voting for EXPO 2010 is strongly impressed _______ my memory

didn’t you try to finish thecomposition— I tried to , butI could, the bell rang announcing the end of the examination time.

The restaurant is so popular here. Look,there are so many _____ here.

They do have a different tothe problem of overpopulation