He is on ________ floor of museum.
句意：他在博物馆的二楼。
考查序数词。根据“on …floor of museum”可知，此处应填序数词表顺序，two是基数词，second是序数词，序数词前要加the，故选D。
He is on ________ floor of museum.
Our National Day ison_________first day in_________October.
—Look at _____ boy overthere. He looks excited.
—Yeah, hehas won _____ first prize in the school English Reading & WritingCompetition.
More and more people have realized saving ________ earth begins with small daily things.
My little brother Bob hopes to travel to ____ space in the future.
— What ________ unusual journey you had!
— Thank God! I nearly died twice because of ________ heavy rain we met.
—What do you think of Beihai?
—It’s great. ______ air is sofresh.
There is ________ book in my backpack. ________ book is very heavy.
I got a nice gift frommy aunt and ________ gift was a souvenir （纪念品） from her study tour in England.
— Look! Who is ________girl at the school gate?
— Oh, she ismy best friend, Kate. She is ________ honest girl.
