Complete the sentences with am/is/are or do/don't/does/doesn't. 1. Excuse me, ... you speak English? 2. 'Where's Kate?' 'I ... know.' 3. What's funny? Why ... you laughing? 4. 'What ... your sister do?' 'She's a dentist.' 5. It ... raining. I ... want to go out in the rain. 6. 'Where ... you come from?' 'Canada.' 7. How much ... it cost to send a letter to Canada? 8. Steve is a good tennis player, but he ... play very often.