(1)The audience sat there calmly, apparently ________ (aware) of the danger.
(2)Mr. White is unaware ________ smoking is harmful to his health.
(3)He seems unaware ________ the trouble he's causing.
(4)The public ________ (aware) of the environmental problem will make the government take it seriously.
(5)He ____________________ (未意识到) we are here.
(6)________________ (据我所知), a lot of crime is connected with drugs.
