Heads from Asia and Europe attended the conference and President Hu ________ a speech on thefirst day.[ ]

It’s time you changed your attitude________women now，Tom；they hold up half the sky，you know.

Sorry, I have to now. It’s time for class.—OK. I’II call back later.

_over everything whenever we want to make adecision, many people believe, and we will have less chance ofmaking mistakes

On the top of the hill ______ many trees.