1 Write the correct answers in your notebook. 1 Could / Can you usually hear the bell in your classroom?' 'Yes, we can. It's really loud! 2 These days, many students can/could find out what their homework is from the school's website. 3 Turn the music down. I can't couldn't study. 4 'In the past, can/could students study a large variety of subjects?' 'No, they couldn't 5 I could / couldn't swim when I was at school, so I had lessons. 6 Alex couldn't/ can't drive until he was 30. 7 My brother can/could ride a bike when he was five. 8 Please slow down. I can't/couldn't walk this quickly. omplete the sentences​