—Does the bookstore math books?—Yes. Do you want to______ one?
While I ___________ TV, the bell rang.
Xu Qian is a funny girl. She loves to __________ jokes.
—How do you study English well? —__________ working hard.
—It looks like rain, __________? —Yes, it does. And I forgot my umbrella.
Sam came to Baihai in 2002. He __________ here for nine years.