26.3 Complete the sentences with can/can’t/could/couldn’t and the words: believe, come, hear, run, sleep, wait.

1. I’m afraid I can’t come to your party next week.
2. When Dan was 16, he could run 100 metres in 11 seconds.
3. “Are you in a hurry?” “No, I’ve got plenty of time. I can wait.”
4. I don’t feel good this morning. I couldn’t sleep last night.
5. Can you speak a little louder? I can’t hear you very well.
6. I was amazed when I heard the news. I couldn’t believe it.