KET - reading comprehension 3

Please read thix text and answer the questions below

Something very strange happened to Susan. She never knew she had a twin sister until she started university!
Susan was born in Mexico. Her parents could not look after her so she went to live with a family in Manhattan, USA.
When Susan was twenty years old, she started university in Long Island. She enjoyed her university life. But one day she was walking home from class, and a student smiled at her. “Hello Kelly!” said the student. “I’m not Kelly,” said Susan.
This happened to Susan again and again. People Susan didn’t know kept calling her Kelly. It was very strange. One day, when a woman called her Kelly, Susan asked “Why do you keep calling me Kelly?”

The woman replied, “You look like my friend Kelly. You have the same face and the same hair. Is Kelly your sister?” Susan said that she did not have a sister . But she was interested in this girl Kelly. Finally she asked someone for Kelly’s email address.
When Susan wrote to Kelly, she found out that they both had the same birthday, they looked the same and both of them were from Mexico.When Susan went to live with the family in Manhattan, Kelly moved to Long Island to live with a family there. It had to be true! Kelly and Susan were twin sisters!