Efforts to stop smoking in public areas _____ progress in Hangzhou in recent weeks. [ ]

On the table _____ two dictionaries．You may look up the word in either of them．

She insisted that she ______ not guilty , but we insisted that she ____ into prison

want to book tickets forthe 2012 Olympic Games, just call 00952012 It_______ be simpler

________ reducing pullution, man should pay more attention to conserving energy