Are you going to __________ this challenge?(挑战)
There are ________ days in a year.
Lily is ready ________ people any time, she always gives her seat to someone in need.
Mrs Smith lives next to us. She is really a good _______, because she always helps us.
Jack is _________years old. Today is his _________ birthday.
My father_________ very busy this week. He _________free next week.