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.

daniel defoe born daniel foe, was an english trader, writer, journalist, pamphleteer, and spy, now most famous for his novel robinson crusoe. defoe is notable for being one of the earliest proponents of the novel, as he helped to popularise the form in britain, and, along with others such as samuel richardson, is among the founders of the english novel. a prolific and versatile writer, he wrote more than 500 books, pamphlets and journals on various topics (including politics, crime, religion, marriage, psychology and the supernatural). he was also a pioneer of economic journalism.

To tell the truth, i am good at organizing different parties because i am always full of great ideas. i love being the centre of attention at parties. i think, i am a real party person. i want to tell you about the party which was organized on the 28th of october. we celebrated halloween at school. all my classmates were present. we all wore masks and were dressed in different costumes. firstly, we took part in a sack race. after that we jumped with tied legs and drew ghosts with closed eyes. everybody laughed. then we drank cola, pepsi and ate cakes, sweets, fruit and ice-cream. also, we played games, sang songs and danced. i sang rap and was in a good mood.