It was ______ to go down the hills.

There are usually at least two _____ of looking at every question.

Only when you get a special permit can you have the ______of interviewing the prime minister of Canada.

  —Nowadays the doctors are trying their best to reduce the people’s fear__________ they would be affected by the present disease called “Bird Flu （禽流感）”.

Each of us is likely to develop a personal         for certain types of entertainment.