Lost my keys Part 1

I lost my keys. To be exact, this morning I noticed I had lost my keys. I looked for them all aver my room but I couldn't find them. Then I thought, they must be in my office. I went to my office. I borrowed a spare key from the landlord of my office. I looked for my keys all over my desk, each corners of the room and between my documents. But I couldn't find them. I tried to remember what I did the past few days. I remember not using keys yesterday and the day before. The last time I used my keys were last Friday. I used my keys to enter my office I went to the my landlord 's house to pick up my refrigerator. Then I used my keys when I opened the door to my office. That day I worked there until 6 o'clock. When I left my office, my partner locked the door. We went to a restaurant with her car. I went home at midnight. Then I couldn't remember whether if I used my keys or not. I'm sure my keys are at either my room, My office, my partner's car or the restaurant. I asked my partner whether if there are my keys in her car or not. She said "No". I called the restaurant but they couldn't find them. I gave up looking for my keys.