All of us are_____aware of the cause of this failure, so do not make the same mistake again.

Work gets done __________ when people do it together and the rewards are higher too.

There was no news；＿＿＿＿, she did not give up hope. 

 We had our bad times but on the whole we are ____ happy with our life.

Those poor and needy teenagers were excited to find a shop at the corner where they could buy ____ priced bikes.