With so many different forms of poetry ______, students may eventually want to write poems of their own.

With the entrance examination _____ up, our classmates work harder and harder.

The company in Suzhou produced quantities of first-class silk, most of them  ____ to Europe.

--- Come on, please give me some ideas about the project.---Sorry. With so much work ____ my mind, l almost break down..

Mary often stays up, reviewing her lessons, books___ all over the desk.