Scientists and experts said it was a big ________in China's space history that Chang'e-II has been smoothly sent around the moon.
According to the recent reports, one of the animals, _____ crocodile, is in _____ danger of dying out.
---- What about _____ lecture? ---- It’s too tiring, as is known, _____ lecture for me.
_____ friend of my sister’s will come to see her tomorrow. I’m wondering what _____ man he is going to be like.
You made the same mistake for _____ second time, dropping _____ “n” in the word “government”.
---- The news is spreading from mouth to mouth. ---- Yes, it’s become _____ talk of _____ town.