Question

17. learning english is necessary today => it is ......................................................

18. using a computer is very simple => it is ...........................................................

Answer 1

17. learning english is necessary today => it is necessary to learn english today .

18. using a computer is very simple => it is simple to use a computer.

Answer 2

17. learning english is necessary today => it is necessary to learn English today

18. using a computer is very simple => it is very simple to use a computer

Answer 3

17. learning english is necessary today => It is necesary to learn english today.

18. using a computer is very simple => it is simple to use a computer.