Beijing, ______________ capital of China, has _________________ long history.

____ you come to my birthday party tomorrow, Robert? –I’m afraid not. I have to study for my exam.

Here are some books for _____ sister and _____.

I’m now in New York with my friend Jenny. We_________ by plane on Monday.

I’m sorry. I forgot(忘记) my baseball. Now I ______it. Can you help me?—Yes, I’d love to.