1. has-are
2. child-children
3.they-them
4.watching-reading
5. other-others
6. playing后的the去掉
7. white-black
8. on the tree-in the tree
1. has-are
2. child-children
3.they-them
4.watching-reading
5. other-others
6. playing后的the去掉
7. white-black
8. on the tree-in the tree