Bài 7: Điền ‘can’, ‘can’t’, ‘could’ hoặc ‘couldn’t’ vào chỗ trống. 1. ________ you swim when you were 10? 2. We ________ get to the meeting on time yesterday, because the train was delayed by one hour. 3. He’s amazing, he ________ speak five languages, including Chinese. 4. I looked everywhere for my glasses but I ________ find them anywhere. 5. She’s seven years old, but she ________ read yet. Her parents are getting her extra lessons. 6. I read the book three times, but I ________ understand it. 7. James ________ speak Japanese when he lived in Japan, but he’s forgotten most of it now. 8. I ________ understand the chapter we had to read for homework. It was so difficult. 9. I ________ lift this box – it’s too heavy! Would you help me? 10. Lucy ________ make it to our meeting after all. She’s stuck in traffic. 11. John ________ play tennis really well. He’s champion of his club. 12. Unfortunately, I really ________ sing at all. No-one in my family is musical either. 13. Julian ________ play golf excellently when he was only ten. 14. My grandmother ________ use a computer until last month. Since then she’s been taking lessons at the library. 15. I ________ open this window! I think it’s stuck. 16. Gill ________ play the piano. She has never studied it.