We’ll be back for our school’s _____ anniversary ceremony(周年庆典). –I see. That means you’ll have a get-together with your classmates in ___ years.
Is that _________ sister, Dave? — No, it isn’t. She is my friend.
The students in our class school very early every day.
Pollution is a serious problem. Scientists have _______ some good ways to save it.
The shoes are beautiful. Please ___________