多给点!
some dinosaurs had wings.thet flew in the sky.
some did not have wings.they walked onland.
2.some dinosaurs had sharp teeth.they ate meat.
some did not have sharp teeth.they ate piants .
3.some dinosaurs swam_they lived near lakes.
some did mot swim_they lived in fiorests.
4.some dinosaurs were heavy,they ran slowly.
some were not heavy.they ran fast.