The student can take the mobile phones to their examination and cheat via various methods, like they can click pictures of their study notes, take help from google, etc. These examinations are useful for checking the student's knowledge, but with the use of mobile phones, the student can cheat in their examinations. This is an unfair means which fails their learning in the long run.
she started to add headings and different signatures to it,
John always wanted to be a dentist and was very determined to become one. He would always try to flatter his teachers by telling them he wanted to be a dentist. However, in the back of their mind they never believed him. One day when John woke up, there was a blizzard, so school was canceled, he was so happy. John continued studying dentistry up until 15 years later, when he turned 22, he finally became one and proved everyone wrong.
Hope it works! :)