“once”的意思是“一次”，“曾经”，“一旦”的意思，拼音是[ wʌns ]。以下是用“once”造的60个简单句子，适合小学生：

I went to the park once.

Once upon a time, there was a dragon.

I have once visited my grandmother.

Once I eat lunch, I will go play.

He was once a teacher.

Once the bell rings, the class will start.

I only went to the zoo once.

Once she finishes her homework, she can watch TV.

I will go to the store once I finish this task.

Once I see my friend, we will play.

I have once seen a rainbow.

Once the movie is over, we can go home.

He was once a famous singer.

I will go swimming once it’s summer.

I will eat ice cream once I finish my work.

Once upon a time, a princess lived in a castle.

I have only seen that movie once.

Once we get home, I will take a nap.

He only told me once.

Once I learn how to ride a bike, I will teach you.

Once the rain stops, we can go outside.

I once played with my cousin in the park.

Once you clean your room, you can go outside.

I only saw that bird once.

Once the sun sets, we will go to the beach.

Once I finish my homework, I will play a game.

I have only been to the beach once.

Once I finish my breakfast, I will go to school.

I once lived in a different city.

Once he finishes his project, we can play.

Once I buy the tickets, we can go to the concert.

I saw that show once.

I have only played that game once.

Once the cake is ready, we can eat it.

Once you help me, I will help you.

I went to the zoo once with my family.

Once the bell rings, the students can leave.

I once met a famous actor.

Once the train arrives, we can board.

I saw a bird once in my garden.

Once I finish cleaning, I will play outside.

I once played soccer with my friends.

Once you finish reading, you can write a story.

I have only visited that place once.

Once you finish the puzzle, I will give you a prize.

I saw the movie once with my parents.

Once I get a new bike, I will ride it every day.

Once the lights go out, it will be bedtime.

I once saw a magic trick.

Once we arrive at the airport, we will check in.

Once you finish the test, you can leave the room.

I once saw a giant fish in the ocean.

Once the rain stops, we will go for a walk.

I went to the library once last week.

I once met a dog that could do tricks.

Once I finish my lunch, I will play outside.

I have only been to that museum once.

Once I learn to swim, I will dive into the pool.

Once I see the stars, I know it’s nighttime.

I only went to the playground once today.

这些句子都简单明了，适合小学生理解和学习“once”的用法。