It was not ______she took off the glasses ________ I realized she was a famous film star.
We haven't settled the question of ______ it is necessary for him to study abroad.
A poet and artist ______ coming to speak to us about Chinese literature and painting tomorrow afternoon.
I wish you'd do ______ talking and some more work. Thus things will become better.
—There is a story here in the paper about a 110-year-old man.—My goodness! I can't imagine______ that old.
______ environmental damage is done, it takes many years for the ecosystem to recover.