Identify the problems in the use of tense in the following sentences (selected from

students’ writings), and then correct them. 

(Eg. Computer technology develops very fast.

the problem: develops

fixing the problem: is developing

in the space devoted for answers, you should write: develops: is developing

please be precise; if you add any character as a full stop or a bracket or put equal instead colon, your answer would be considered incorrect even if it is correct!)

Computers

are used in many fields including business, medicine and education. Firstly,

businessmen are using computers to interact with their customers anywhere in

the world.