Necesito ayuda en estos ejercicios por favor

1. We ....................................................... (invite) them to the party but they didn’t come.
2. It .................................................. (rain) when we .............................................(go) out.
3. It’s a nice day today. The sun .........................................................(shine).
4. I got up early and ..............................................................(have) a shower.
5. The phone ............................(ring) while Mary ........................................(cook) dinner.
6. Tom isn’t at home at the moment. He .................................................(travel) abroad.
7. I saw Bob and Sam at the party, but I ................................................(not/speak) to them.
8. Robert had a book in his hand but he ..............................................(not/read) it.
9. The floor is clean now. I ..............................................................(just/wash) it.
10. How often ................................................................(you/go) on holiday ?