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

______can I keep the book —For a week.

as I see, ________ is nopossibility ________ he will win the tennis match this time

Not only ______________ his own plays, but also he acts in them.

We often say that something is “as light as air”, but air is＿＿＿light