Complete the sentences using “can, can't, could” or “couldn't” (Hoàn thành các câu sử dụng “can, can't, could” và “couldn't”) 1. … that child prodigy play the piano when she was two? 2. The boy on TV now … remember 1,000 different numbers - he's amazing! 3. My little sister … write any words at the moment, but she can read easy sentences. 4. We ... play tennis when we were ten, but we're good at it now. 5. That famous artist … paint well at an early age. 6. How many languages … your cousin speak ...