complete

 

Exercise 2 – Now complete the blanks with must, should, shouldn’t, or couldn’t:

1. I'm so thankful for your help with this project. I ____ couldn’t __________ have done it without you!

2. The repairs I made _____should________ have fixed the problem, but they didn't - so I'll have to take another look.

 3. It ____must______ have rained a lot last night - there are puddles everywhere.

 4. I _____shouldn’t__________ have watched that horror movie; it gave me nightmares.

5. We _____couldn’t______________ have known about this; nobody told us anything about it.

6. If you’ve been trying to lose weight, then you really _______shouldn’t____________ have eaten all that ice cream.

7. He ____couldn’t_____ have finished a 500-page book in a single day!

8. She never showed up. She ___must____ have forgotten about our appointment.

9. He broke two of the plates while washing the dishes. He ____should_______ have been more careful.

 10.They ate every bite of their dinner - they _____must_______ have enjoyed the food.