Five ________ new bookswere sold out last month.
句意：上个月五千本新书被卖出了。
考查大数表达法。指实际的数字时，基数词+thousand；表示泛指时，用thousands of，表示数以千计的。空前有基数词five，故thousand不能加s，也不能和of连用。故选D。
Five ________ new bookswere sold out last month.
—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.
