All of exchanges that i am using, closed their bitcoin wallet for deposit and withdrawal. Some of them want to take my BTC and give me BCC instead. This is certainty and they said on news.
BCC's value is 0.1 BTC at now.
What should i do for holding value of my BTCs in dollars?
Some of them hasn't any option for trading BTC/USD.
Should I exchange my BTC with ETH?
Haven't you read this
thread? You should've read it since it kep appearing at the top in the forum with
News: then the guide. It is written by theymos himself. He warned everybody to get all their Bitcoins out of exchangers. You can read other details as how you can manage it effectively but I think you're late or too late.