1) She ... surf the internet when she was 4 years old.  (negative) a) can't b) couldn't c) can 2) Teresa ... swim very fast (affirmative) a) can b) can't c) couldn't 3) She ... ride a bicycle now but she couldn't ride a bicycle when she was little. a) could b) can 4) She can swim now but she ... swim in the past.  a) couldn't b) can't 5) Shirley ... sing and dance when she was three.  a) could b) can 6) I ... play the guitar now. (affirmative) a) can b) could c) couldn't 7) Pablo Picasso ... paint when he was 10. a) can b) could 8) Vanessa ... play the violin when she was five. a) could b) can 9) Marie Curie ... read Russian and French when she was four. a) could b) can 10) I ... hop and catch now, but I couldn't when I was 2. a) can b) could c) couldn't

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