Exercise 29.1: Can or Could

Fill in the blank with can or could.

Example: When I was at school I ____ never understand physics.
Answer: When I was at school I could never understand physics.

1. Bees ____ fly, even though it seems impossible.

2. I ____n't get to the shops today. They closed early.

3. He asked me if I ____ help with the laundry, but I was too busy.

4. Take an umbrella. It ____ be raining when you get to Vancouver.

5. Take an umbrella. In Vancouver, it ____ rain at any time.

6. They say they ____ deliver it next week.

7. They said they ____ deliver it next week, but I told them not to.

8. You ____ leave the class when you've finished the exercise.

Unit 28
Unit 29