Put the verbs in brackets into the Present Perfect.
1. (answer) I...........................................................................
2. (live) He...........................................................................
3. (clean) You............................................................................
4. (visit) She.............................................................................
5. (ask) I..............................................................................
6. (open) It..............................................................................
7. (invite) We............................................................................
8. (help) She.............................................................................
9. (listen)They............................................................................
10. (collect) I..............................................................................