It is necessary for you to have a computer password.
You

have a computer password.
It isn't necessary to stay in the exam hall after you have completed the test.
You

to stay in the exam hall after you have completed the test.
I advise you to seek help if you are having problems understanding something.
You

seek help if you are having problems understanding something.
Nia is a very well-behaved child. I doubt that she was nasty to the other children.
Nia is a very well-behaved child. She

nasty to the other children.
Richard has the ability to solve maths problems very quickly.
Richard

solve maths problems very quickly.
Students are obliged to be on time for class.
Students

on time for class.

nastia2931    3   24.04.2020 13:16    5