Answer:
The answer is:
August came. We need extra money so we sold the old tractor and also we sold some roosters, then harvest time came, we worked hard but we couldn’t get all the corn, in first frost came the corn was harvest so we pick apples and we made cider harvest time, although is hard, we work together and we felt good.
Step-by-step explanation:
Conjuctions are words used to connect clauses or sentences, and prepositions is a word that expresses the relation to another word in the text. In your example it is very confusing, as you have a mix of grammar tenses which makes it complicated to only add conjuctions and preposition, nevertheless, I added some punctuation as well that could make it easier to understand. The underlines words are the conjuctions and prepositons.