Ifweareaskedexactlywhatweweredoingayearago,weshouldprob...
問題詳情：Ifweareaskedexactlywhatweweredoingayearago,weshouldprobablyhavetosaythatwecouldnotremember.Butifwehadkeptabookandhadwrittenitinanaccount(陳述)ofwhatwedideachday,weshouldbeabletogiveananswertot...