Complete the article with words from exercises 1-4. Use one word in each space. Write - if no word is necessary.

The task is not entirely clear, there is no article. I can provide a general example of using prepositions of time from the previous exercise in a short article:

"The school year typically starts at a specific time. For example, the classes begin at 9:30 AM. Many people enjoy watching films on the weekend, as it's a relaxing way to spend time. Summer holidays often take place in July, a popular time for vacations. Friends might plan to meet on Friday to kick off the weekend. Activities like skiing are common in winter. Before having lunch, it's a good habit to wash hands for hygiene. Finally, many families have gatherings at Christmas time."