Sentence practice

I really enjoy playing Quizizz quizzes.

• simple sentence
• complex sentence
• compound sentence

When I play a Quizizz quiz I have to remain focused.

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• complex sentence
• compound sentence

I like playing Quizizz quizzes, but sometimes I don't do too well.

• simple sentence
• complex sentence
• compound sentence

I find doing my work on my laptop to be quite enjoyable.

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• complex sentence
• compound sentence

If I don't read carefully, I often make mistakes on my work.

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• complex sentence
• compound sentence

Today I have an English quiz, and I must turn in the outline for my project.

• simple sentence
• complex sentence
• compound sentence

We recently read the short story "The Open Window" by Saki.

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• complex sentence
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After we read "The Open Window" we read "The Monkey's Paw."

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• compound sentence

I had to read a short story, and I had to write a paragraph for homework last night.

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• complex sentence
• compound sentence

Is this sentence simple or compound?
Kennedy has a new baby brother, and Katie has an older sister. 

• simple
• compound