Can i hold BNB tokens and ETH tokens at same wallet

How to hold BNB tokens and ETH tokens at same wallet

I have BNB tokens at binance smart chain network with my account 1 now, can i also hold ETH tokens in same account 1 or how to hold ETH tokens please help

I swapped mainnets btw ETH mainnet and Binance smart chain but my account address remains the same. what to do