Grammar test – Modals – can and can’t: Answer Sheet 1. Choose the correct sentence! Read the sentences and underline the correct one. 1. b. I can swim. 2. a. We can’t speak Russian. 3. a. Can you swim? 4. c. Yes, I can. 5. a. No, I can’t. 2. Find the mistake! Find the mistake, underline it and write the correct sentence. a. They can to speak English. They can speak English. b. I can’t riding a bike. I can’t ride a bike. c. We to can play the violin. We can play the violin. d. Please can't I have some water? Please can I have some water? e. She can writing Chinese. She can write Chinese.