—China is a greatcountry with a history of about five ______ years.
—Yes. And ______ of foreigners come tovisit it every year.
句意：——中国是一个有着约五千年历史的伟大国家。——是的。每年都有成千上万的外国人来参观。
考查数词。根据第一空前“five”可知，与具体数字连用时，表示大数的单词通常不加s，所以第一空用thousand，排除选项B和D。结合答句语境可知，当大数表示不确定的泛指时，则不仅要加s且要后接of，这样才能接名词，构成“thousands of成千上万”。故选C。
—China is a greatcountry with a history of about five ______ years.
—Yes. And ______ of foreigners come tovisit it every year.
Sweet wormwood(青蒿)is a common plant inChina and Tu Youyou is the woman _________used the special power of the plantto save __________lives.
In our school everystudent has to choose a club to join, so about one ________ students havejoined the Sports Club.
My mother will be________ years old next week. I’m planning to buy a gift for her ________birthday.
Our country isnearly________years old. We'll celebrate its________birthday on October 1, 2019around the country.
Today is my littlebrother's ________ birthday, so I put________candles in the cake.
My grandparents live inan old apartment with ________ floors and they are on the ________ floor.
He got ________ birthdaycakes on his ________ birthday.
We are preparingprograms to celebrate our country’s ________ birthday.
—I like number “9” best,because I think it stands for “long lasting”.
—Me too. So I chose ________ floor to live on.
