The family quarrelled about ___ shares the whole night.

— You seem to be on top of the world. — Of course. There’s            more exciting than seeing your name in print.

Is ______ true that the famous scientist will give us a lecture on how to predict earthquakes next week?

  The new technology will make ________possible to grow food with very little water.

Charlie Chaplin found __________ difficult to entertain the audience at first.