Canyoutellusmore___(precise)whathappenedlastnight?

Justafewyearsago，Tanyawas___(home)andbeggingformoneyinfrontofasupermarketinNewYorkCity.

Janeisrestless;sheis_____animportantphonecallfromherparents.

确定商品价格的唯一因素是价值。

一定时期流通中所需要的货币量等于商品价格总额除以()