Modal Verbs: Could/Couldn't
Study the following grammar explanation.

Focus on Modal use: Modals are used to express advice, necessity, possibility, and suggestion. 
For each question below, fill in the blank with the correct grammar form using modals.

Example: You have an exam, you __________ hard.

You have an exam, you could study hard. 

1.  I ______ _____ he was upset.

2. From the top floor, I ________ _____ the entire city.

3. When I was a kid, I _____  _________ with pets.

4. I hurt my leg so I _____ _____ in the race.

5. I ______ ______ the muffins from a block away.

6. I _______ ______ the negative energy in the room.

7. He _____   ___  your great uncle   

8. I _____ ____ to the store for you later.

9. They _______ ______ her to the airport.

10. No matter how hard he tried, Matt ________ _____ his exam.

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