1have forgotten
2Has the secretary come yet?
3have learnt
4Have you ever been to Italy?
5have already informed
6have ever seen
7has already left
8hasn't received
9haven't heard
2.Who are you going with?
3.What are you going to read?
4. Are you going to study this summer?
5.What sports are you going to play?
6. Are you going to speak English?
They often meet her at the museum, don't they?
That painting is worth a lot of money