定语从句是英语语法中的一个重要部分，它用来修饰一个名词或代词。下面是50个简单的定语从句例句，希望能帮助大家更好地掌握定语从句的用法。
- The book that I borrowed from the library is very interesting.
- The girl who is wearing a red dress is my sister.
- The man whom we met yesterday is my neighbor.
- The car which is parked outside is mine.
- The house that was built last year is now for sale.
- The teacher who taught us English is from Canada.
- The movie that we watched last night was very good.
- The person whom I am speaking to is my boss.
- The restaurant which serves Chinese food is my favorite.
- The cat that is sleeping on the sofa is mine.
- The doctor who treated my illness is very experienced.
- The game that we played last night was very exciting.
- The building which is under construction will be a shopping mall.
- The woman whom I saw at the party is my friend's girlfriend.
- The song that I am listening to is my favorite.
- The company that I work for is a multinational corporation.
- The dog who lives next door barks a lot.
- The book which I am reading is very long.
- The person whom I met at the airport is my cousin.
- The shirt that I bought yesterday is too small.
- The apartment which I am renting is very spacious.
- The artist who painted this masterpiece is famous.
- The vase that is on the table is very beautiful.
- The school where I studied English is in New York.
- The cake that my mom baked is delicious.
- The man whom I shook hands with is the CEO.
- The restaurant that we went to last night was expensive.
- The woman who is sitting next to me is my colleague.
- The car that I want to buy is a sports car.
- The actor who won the award is very talented.
- The movie which I watched yesterday was a comedy.
- The person whom I am waiting for is my friend.
- The dress that she is wearing is very fashionable.
- The city where I was born is in China.
- The computer which I am using is new.
- The house that I grew up in is in the countryside.
- The teacher whom we had last year was very strict.
- The book that I lost last week was my favorite.
- The person who is knocking on the door is the postman.
- The bottle which is on the shelf is empty.
- The woman whom I saw at the store is a famous actress.
- The movie that we saw last weekend was a horror film.
- The car which I rented is very expensive.
- The boy who is playing soccer is my nephew.
- The song that is playing on the radio is catchy.
- The computer that I bought last month is very fast.
- The building where my office is located is very tall.
- The man whom I saw on the street is a stranger.
- The book which I am writing is a novel.
- The dress that I bought online is too big.
希望这些简单的例句能够帮助大家更好地理解定语从句的用法，也能够帮助大家在英语学习中更加得心应手。
