Deposit should be deposit, which means deposit, deposit; Is a single grammatical error, I think it should be a single is. ....

This passage should be an introduction to AK savings ~ I guess it should be a short paragraph in a newspaper or magazine

AK (probably short for Alaska) savings are single. This singularity is reflected in the fact that gold, silver, dollars and jewels can be converted into currencies with a face value of hundreds of millions of dollars, and the vouchers for immediate payment can be obtained.

Please refer to correct me ~