It is important for Latin America to diversify it's economy because for one thing, L.A. wouldn't have to take the risks of a failed business by relying on one crop or resource. Another reason is that more diverse crops or resources brings in a steady amount of money with varied products, and L.A. would be taking their chances by just relying on one crop/resources.
It is the decision of the Supreme Court complex ruling in O'Connor v. Ortega. This case delineated two sectors in the workplace: public and private. Within the private sector, the Supreme Courts stated, "Every warrantless workplace search must be evaluated carefully on its facts. In the public sector, however, as established in the O'Connor case, public agencies may have compelling reasons to search in the workplace.
The correct answer is was working.
You need to use past continuous tense (was working) to denote that an action which was being processed for a period of time has now been interrupted. So, Penelope was working on her homework for a prolonged period of time, and then the doorbell rang and interrupted her.
