1. Had you visited another country by the time you were 10? Yes, I had. / No, I hadn’t.
2. Had he learnt to swim by the time he was 7? Yes, he had. / No, he hadn’t.
3. Had she ridden a bicycle by the time she was 5? Yes, she had. / No, she hadn’t.
4. Had it seen snow by the time it was 6? Yes, it had. / No, it hadn’t.
5. Had we made friends by the time we were 8? Yes, we had. / No, we hadn’t.
6. Had you climbed a tree by the time you were 9? Yes, I had. / No, I hadn’t.
7. Had they played a musical instrument by the time they were 10? Yes, they had. / No, they hadn’t.
8. Had she written a story by the time she was 11? Yes, she had. / No, she hadn’t.