We had a marvelous holiday: only the lasttwo days were slightly _____ by the weather.

Teenage students who are ________computer games usually would not focus on studies .

an is a/an _______ secretary in our office, forhe is able to do tasks successfully, without wasting time or energy

The importance of saving gas_______be stressed too much. Automobiles use up some 70 billion gallons of gas a year.

Mo Yan has been the firstChineseto win the Nobel Prize in Literature, ___________ arouses people’s interest inreading his works.