Answer:
a. To protect students, laws were passed in many states that prohibited the use of social security numbers as identification.
Revision: Law makers in order to protect students passed laws in many states that that prohibited the use of social security numbers as identification.
b) Software was installed to track how much time employees spend surfing the Web.
Revision: The IT department installed software to track how much time employees spend surfing the Web.
c. Checks are processed more quickly by banks because of new regulations.
Revision: The banks are now processing checks more quickly because of new regulations.
d) Millions of packages are scanned by FedEx every night as pack- ages stream through its Memphis hub.
Revision: FedEx scans millions of packages every night as packages stream through its Memphis hub.
e) Companies are being advised by analysts that tablet computers have to be replaced more often than PCs.
Revision: Some analysts have given advise to companies that tablet computers have to be replaced more often than the PCs.