Recognized as ________ world cultural heritage by the United Nations in 2002, paper cutting is ________ practice which originated in ancient China.

I have two cats. One is black, and ______ is white.

When you are sleeping, you had better _____ all your windows closed. [ ]

Tom　was　so　careless　that　he　_____　his　right　arm　when　he　was　riding　to　school.

Father’s Day is on _________ Sunday of June.