Complex because it has one dependent clause and one independent clause.
Answer:The answer to 1 is our. The answer to 2 is Their. The answer to 3 is my. The answer to 4 is its. The answer to 5 is her’s. Then I have no clue for 6. I’m sorry.
Explanation:
Went to the store is not a complete sentence because there is no subject going to the store.
Hope this helps! <3