Give short and full answers:
1. Have you ever been to London?
2. Have you ever travelled by air?
3. Have you had any dictations this month?
4. Has Kate revised the grammar rules yet?
5. Have they passed their exams?
6. Have they read much about Great Britain?
7. Have you kept your promise?
8. Has the post come?
9. Have you ever driven the car?
10. Has the lecture begun?