Dr Q: OK everyone, listen carefully. Today we must get ready for Millie's surprise party. Here are my instructions. Pi, you mustn't eat the nuts because they are fo the party tonight. Rob, you can choose the music - any songs you like. Remember, we can tell Millie about the party. It can't be a surprise.
Pi: Ha, ha, ha ...
Dr Q: What's the matter? Why are you laughing? You can't laugh at me. It's rude!
Rob: Turn around. Millie is standing behind you ... and listening carefully too!
Ответ: 1. must, 2. mustn't, 3. can, 4. can, 5. can't, 6. can't.