It is _________ difficult work that we can’t finish itin a short time.

The children _____long wool coats stopped to look at us.

How many people will come to Beijing for the Olympic Games in 2008 — It’s hard to say. _______ people, I think.

The machine _____ . It hasn’t worked for years and noone wants to repair it.

He didn’t ________ what I said because his mind was on something else.