These plastic flowers look so _____ that many people think they are real,____they sell badly for the finanical crisis.

I found him sitting in his chair, completely _____a magazine.

Air is________and of no smell but we can feel its motion when there is a wind. 

Those who act against the benefit of the people are _______ to fail. 

 When it comes to the civil war in Syria, the US government’s attitude towards it has experienced a(n)_______ change , which may have a positive effect on Syria present situation.