用方框中所给词的适当形式填空。 | |
2. When the ambulances were coming, there were a lot of people _____ the fire. 3. It's a good way to wear a helmet _____ smoke and fire. 4. The big fire hadn't _____ by the end of this week. 5. The firemen were busy _____ the fire. 6. Some of people were _____ fire with water. |