Answer :
The article "Peach Trees" on a local university website is the most reliable source to support a paper on the proper care of peach trees.
The article "Peach Trees" on the university website could be written by a student studying about peach tees, a research fellow conducting research on peach trees or a university professor who is an expert on the cultivation of fruit plants like peach trees. Thus, the article "Peach Trees" is considered as a reliable source of information containing the latest knowledge and advancements in the cultivation of peach trees.
Since you need the shift in verb tense, both verbs have to be in the past. So, the correct answer should be - For the upcoming bake sale at the fair, we baked the cake and FROSTED it.
Um... I think it means that they wanna be Jackie Chan because he has a better future and he is better at karate