—English is difficult for me. I can’t learn it well.—Don’t give up. Nothing is difficult if you work hard.
This morning when I walked by the park, I saw many children ___ there.
There ____ a sports meet in our school. I will take part in the long jump.
I think this is ___ useful book, so I will keep it for ever.
Peter is a _______boy. His younger brother is _______.
—The supermarket is crowded(拥挤的). There are _______ people there. —Yeah, and the things there are always __________ expensive(贵的).