was sailing (past continuous for the longer action) / worried (simple past for the shorter, completed action).
Do not just copy. For each answer you look up, write a short note explaining why that is the correct answer. For example: New World Workbook 5 Answers
Search for the specific unit or chapter name. Many students create flashcard sets that contain the exact questions and answers from the workbook. was sailing (past continuous for the longer action)
