Please help me.. Пожалуйста помогите

2 an author is someone who writes books.3 a parrot is a bird which can talk.4 a ruler is something which we use to draw straight lines.5 a dentist is someone who looks after your teeth.6 a waiter is someone who works in a restaurant. 7 an ostrich is a very large bird which can run very fast.8 a thief is a person who steals things.