After ________ seemed an endless wait, it was her turn to enter the interview room.

The news inspired the whole world______ Israeli scientists have invented a kind of magic glasses_________ can let the blind see things.

．China is playing an important role in the world. That’s_______Laura has come to study Chinese.

You ought to have a good rest _______ you have finished your painting.

I’ll keep his address _____ I need it.