Use the present perfect to make positive or negative sentences. Example: the screen/go/blank The screen has gone blank. 1.The charger/stop/working 1.The charger has stopped working 2.I/not/upgrade/the operating system 2.I haven’t upgrated the operating system 3.She/not/install/the updates 3.She hasn’t installed the updates 4.They/reinstall/the application 4.The haven’t reinstalled the application 5.She/not/be able to fix the problem 5.She hasn’t been able to fix the problem
B) Read this email .Answer these questions .
From: IT Director
Subject: Online transactions security
How many security features will the company have? What are their names?
Virtual private Network with a firewall , Web application protection fare wall (WAF), Secure Socket Layer (SSL), two-factor authentication (2FA)
Which security feature will stop attacks on the company network ?
Virtual private Network with a firewall
What solution will protect customer contacts and login boxes?
The web application protection firewall (WAF) will protect our website from hacker attacks on customer contacts and boxes.
What will protect private user information sent over the network ?
Secure Socket Layer (SSL) will protect private user information sent over the network
What will the two-factor authentication prevent?
