Read the following paragraph and write the topic sentence on the Answer Sheet.
We are on our way to becoming a cashless,  checkless society, a trend that began with the credit card. Now some banks are offering  “debit cards” instead of credit  cards. The costs  of  purchases made  with  these  cards  are  deducted  from  the  holder’s  bank  account  instead  of  being  added  to  a monthly bill. And checking accounts, which are mainly used for paying bills, are going electronic. Now some  people  can  make  computer transactions  over their  pushbutton  phones to  pay bills by transferring  money  from  their  account  to  the  account  of  whomever  they  owe. Soon  we  may  be able to conduct most of our business without signing a check or actually seeing the money we earn and spend.