More and more young people In China celebrate ________Christmas DayDecember 25th.A at B. on C. in
Mr.Smith has a habit of taking a shower _________ he has breakfast.
A person who is __________ does not tell lies or cheat people.
Annie has a ___________,and she is going to see her dentist today.
---What do you know about kite surfing?----It is _________ exciting water sport.
Everyone in our class ___________ to take part in the English Speech Contest.