Have you ever seen Big Ben (Yes, I have/No, i haven't)
Have you ever met the President? (Yes, I have/No, i haven't)
Have you ever bought any souvenirs? (Yes, I have/No, i haven't)
Have you ever taken any photos? (Yes, I have/No, i haven't)
Have you ever read an interesting book? (Yes, I have/No, i haven't)
Have you ever come late to school? (Yes, I have/No, i haven't)
Have you ever gone fishing? (Yes, I have/No, i haven't)
Have you ever made a project in English? (Yes, I have/No, i haven't)
Have you ever done any morning exercises? (Yes, I have/No, i haven't)