Answer:
D. We had such a good time at the Rennies's dinner that we will definitely invite them over to our house.
Step-by-step explanation:
The speaker refers to a past experience when she says:"We had such a good time at the Rennies's dinner..", so she uses the simple past of the verb "to have". As a consequence of this past experience, the speaker makes a decision at the moment of speaking and she says: "...that we will definitely invite them over to our house", so she uses the future tense of the verb " to invite".