Modal Verbs: Could/Couldn't and able to
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.

1.  I  _______  _______ and graduate from college.

2. I _______ _________ what the old man was saying.

3. My friend _________ ________ my favorite show on DVD!

4. Tim ______ ______ his stomach start to ache.

5. I ______  ________her loud music from a block away.

6. I _________  ________ my science fair project in time.

7. This soup was bland, I ______ _______ anything.

8. The sun was so bright that I _________ _____ a thing.

9. I _______ _________ the answers to the exam.

10. When I came in, I _______ _________ my mom's famous pie.

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