Mum gives me a dog for my holiday. _______ name is Lucky.

Though the passage is easy, I don’t think __________can understand it.

—Who is the man over there?—He is an old friend of _________ .

I bought two teddy bears. One is for my sister, ________ is for my friend Tom.

—______is the Changjiang river in China, do you know?—Yes, it’s about 6,380 kilometers long.