GLOW: Grammar Lessons On the Web
For the exclusive use of employees of the U.S. Department of State--by Tillyer Associates

Practice #1
Modal Auxiliary Expressions:
can, could, may, might, will


Choose the most appropriate modal auxiliary for each sentence.

1. Don't worry, Mr. Francis, I promise, I _________ (may/will) pick up the documents from the
    ministry first thing tomorrow morning.

2. I ________ (can/could) type very fast when I was in college. I'm much slower now.

3. I'm sorry, Mr. Martinez, the rules state that you _________ (may/can) visit your uncle in Ohio,
    but you ________ (won't/can't) stay longer than six months.

4. I don't know if I can, but I ________ (might/will) go to Toronto next week.

5. If you come to visit us next summer, you ________ (can/will) stay in the guesthouse.

6. Jay usually takes two courses each semester, but this semester he said he ________ (could/might)
    try to take three.

7. If Ashot looks out his back window, he ________ (could/can) see the Caspian Sea.

8. When Jacques was younger, he ________ (might/could) ride 30 km on his bicycle in an afternoon.

9. If you want to, you _______ (can/may) have a swim in the pool before dinner.

10. Next week I ________ (could/may) take a trip into the Sonora Desert.
 

Lesson  Answer Key    List of Lessons

İTillyer Associates