1) Yesterday, I ___ find my keys, so I was late for work. a) can b) can't c) couldn't  2) Sarah ___ speak Spanish fluently, but she ___ play the guitar. a) can / can b) can't / can c) can / can't 3) They ___ swim when they were kids, but now they ___ swim very well. a) can / can't b) couldn't / can c) could / can't  4) When I was a baby, I ___ ride a bike.  a) can b) can't c) couldn't 5) Last year I ___ speak a little English. a) can b) can't c) could 6) We ___ go to the concert last weekend. a) can b) can't c) couldn't 7) Last summer, we ___ go camping because the weather was terrible. a) can b) can't c) couldn't 8) He ____ sing beautifully. He usually participates in contests. a) could  b) can c) can't 9) I ___ lift that heavy box without help, it's too heavy for me. a) can b) can't c) could 10) My grandparents ___ use a computer, but now they ___ use social media. a) can / could b) can't / can  c) couldn't / can

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