Trả lời: 1. can't2. Can3. can4. can't5. could6. play7. Could8. could9. couldn't
Trả lời: 1. Can Albert speak five languages?2. I couldn't read when I was three years old.3. Tim and Steve can cook well.4. My dad could swim very fast last year.5. We can't understand Italian.6. Could Kim read when she was five?
Trả lời: 1. Can you make, Yes, I can. / No, I can't.2. Could you swim, Yes, I could. / No, I couldn't.3. Could you play, Yes, I could. / No, I couldn't.
Trả lời: Ex: I couldn’t play the guitar when I was young.
Trả lời: 2. f. fast3. d. old4. c. many5. a. much6. e. often