17.1 3. Have you ever been to Australia? 4. Have you ever lost your passport? 5. Have you ever flown in a helicopter? 6. Have you ever eaten Chinese food? 7. Have you ever been to New York? 8. Have you ever driven a bus? 9. Have you evee broken your leg?
17.2 2. Helen has never been to Australia. 3. Helen has eaten Chinese food a few times. 4. Helen has never driven a bus.
5. I have never been to New York. 6. I have played tennis a few times. 7. I have flown in a helicopter once. 8. I have been late for work many times.
