1.an umbrella is a thing which useful in the rain.2. Homework is a work which you do after school.3.an email is a electronic message which you send.4. A teacher is a person who help you to learn.5. An album have a music which are on a CD.6. A parent are a person who have a child.7. Basketball is a sport which you play on a court.8. You are a person who enjoy grammar.