You play the piano so well. ________ do you take piano lessons—I go to piano lessons twice a week.

Mo Yan, a Nobel Prize winner in Literature, grew up listening to folk tales that __ for centuries in his hometown

The Guangxi Zhuang autonomous region _______ $ 1.59billion worth of trade with the Association of Southeast Asian Nations in thefirst two months of this year.

Without the teahcer’s help, I ___ the exam.

He is good at English, ______we all know.