用所给单词的适当形式填空
1.The lion is good at (run) on the grassland.
2. the camel (live) in the desert?
3.Betty and Tony come from (difference) countries.
4.Playing with fire is very (danger).
5.In autumn,there are lots of yellow (leaf) on the ground.
1.running
2.Does ;live
3.different
4.dangerous
5. leaves