Dưới dây là các từ phù hợp để điền vào chỗ trống:

1. **staff** - A member of a political **staff** gave a speech in the town centre last night.
2. **crew** - The teaching **crew** at our school have formed a basketball team.
3. **staff** - The search **staff** had no luck in finding the missing child.
4. **crew** - The ship's **crew** served drinks as the ship set sail.