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 Every possible means __________ （已用來） to prevent the air pollution, but the sky is still not clear. （use）

Helen had to shout to make __________ （人們聽到她的話） above the music at yesterday’s party. （herself）  

News reports say peace talks between the two sides have broken down  _______________ (未達成協(xié)議).     (reach)

While you are abroad, do remember__________________(使自己適應(yīng)) observing the local safety rules.  (adapt)

If you don’t go travelling to Mount Tai, neither ___________________(我也不去). (will)

________________（碰巧） the poor lady had left the necklace somewhere on the way home.   (occur)

The energy______________(一定用完了)，for the fire went out of itself. (use)

When everyone  _________(在懷疑是什么) that makes them divorce, its seems to us that there are two main causes. (doubt)

Now, __________(人們普遍認為) that no college or university can educate its students by the time they graduate.  (accept)