–I’m very sorry to have caused you so much trouble, Mr. Brown. – .
---When is the Spring Festival this year? ---It’s______February 19th. But people celebrate it______the evening of February 18th .
I’m going to visit the Great Wall next week.—Really? _______
Some children are in the playground._______ are very happy.
Thank you for _______ the door for me.
We can fly kites on _______ days.