Future simple or present progressive 1) if ruth keeps her word, nobody (learn) our secret. 2) tell us when you sister (arrive). i think we (meet) her at the airport. 3) mrs.rochester (come) if you invite her to the party.you (send) her an invitation?

1) If Ruth keeps her word, nobody will learn our secret.
2) Tell us when you sister arrives. I think we will meet her at the airport.
3) Mrs.Rochester will come if you invite her to the party. Are you sending her an invitation?