Потомучто оно пишется перед сущ. во мн числе когда хотят показать на то что это сущ. есть
1.Have you
2. are you
3.do you use
4. did you
5. is
6.do you
7.does
8.were you doing
Ellen hasn't got any brothers or sisters. Her best friend Nancy lived in another city and Ellen couldn't look for friends her ages. Ellen hasn't got any cats or dogs. She was studying at school and mixed classmates at school. She wanted to have a good friend Who can help her with some problems or give advice. She thought that people couldn't do without friends.
1 I love animals. I'm thinking of becoming, a vet.
2 Steve likes wearing sunglasses, even in winter.
3 Would you like to watch television?
4 Pamela asked me to help her with her homework.
5 You must take the dog for a walk every day.
6 Paul left without saying goodbye last night.
7 I went to the butcher's to buy some meat for dinner.
8 Fred enjoys cooking. He wants to be a chet.
Quarter past eight. 5 o'clock, quarter to twelwe, quarter to eleven . quarter past 2