The islands developed on their own for 80 million years and ________ have many rare animals found nowhere else.

I got up _____ late _____I was late for school this morning. [ ]

About_______of the engineers in me company were born in the_________．

Yu Bao was born _____ Nanjing _____ August 16th, 1990.[ ]

There are _____ boys on the playground.