In the history of Chinese revolution, Taierzhuang Battle was a ________ battle in which both sides suffered heavy losses.

All the candidates present at the conference have contributed to the development of our country, so they are each recognized specialists in their _________fields.

Nowadays as a journalist, you have to be immediate in covering a news event and _____ in your account of the news story. I dare say it’s really a tough job.

She sat at her desk，with her eyes ________ on the book，________ in its plot.

The water of the lake was so __________ that it looked like glass.