Fill in a/an in the boxes. сделайте побыстрее заранее огромное

(На фото привило)
А ruler
A textbook
An classroom
An eraser
An atlas
A pen

1)Rose has been teaching  French since has she graduated from coollege.
2) I had seen many photos of the pyramids before I went to Egypt.
3) Jane stopped talking when the teacher entered the classroom.
4) Nick used to smoke but, the gave it up.
5) Could you tell me where the library is? 
6) It's surprised that she failed the exam, because she's a good student.
7) She's interested in politics and often talks about it.
8)The time when a man and a woman are getting married is a wedding ceremony.
9) I couldn't Hoover the carpets because the vacuum cleaner wasn't working.
10)She has a flat on the sixth floor of the large detachedhouse.

My favourite domestic animal is a cat. Its name is Chapa. My cat is very fat and kind. Its head isn’t big. Its neck is short. Its paws are small with big clutches. Its  eyes are green and clever. Its ears are small.  My cat likes milk and chicken hens. Most of all Chapa likes to sleep. I think cats are very careful and clever.            Мое любимое домашнее животное – кот. Его зовут Чапа. Мой кот очень толстый и добрый. У него небольшая голова. Его шея короткая. Его лапы маленькие с большими когтями. Его глаза зеленые и умные. Его ушки маленькие. Мой кот любит молоко и куриные шейки. Больше всего Чапа любит спать. Я думаю, коты очень аккуратные и умные.