помогите с олимпиадой. 9 класс

Our band has been trying hard for a long time (1)
__________ known. We (2) ______________ in
different small clubs and have tried to get in touch with
various companies. We keep (3) __________ that
someone (4) ___________ listen to our work and decide
(5) _________ us. Yesterday, we (6) ________ an
unexpected phone call. It was the manager of a large
record company. He said he (7) __________ of us and
wanted to see us perform live. (8) ________ an
opportunity!

1. a. become b. to become c. becoming
2. a. have appeared b. were appearing c. appeared
3. a. thinking b. think c. to think
4. a. shouldn't b. had fetter c. may
5. a. to help b. helping c. help
6. a. have received b. had received c. received
7. a. hears b. heard c. had heard
8. a. How b. So c. What