0. Have you seen John?
1. Have you been to Canada?
2. Have they cooked our breakfast?
3. Have Jane made any mistakes?
4. Have we visited all the museums?
5. Has she written to her mother?
0. Have you seen John?
1. Have you been to Canada?
2. Have they cooked our breakfast?
3. Have Jane made any mistakes?
4. Have we visited all the museums?
5. Has she written to her mother?