The number of the wild animals will become if we don’t take any actions to protect them.
In which picture can we see the students of the poor village reading books donated by us?
—Mum, 1 am hungry. May 1 have some______? —Of course. But don't eat too much.
—Look! A book is on the floor. Whose is it? —It ______be Rick's. It has his name on it.
—______ hard Tony is working! —Yes. We should learn from him.
It's 9:30 pm, children! ______ is time to go to bed.