My sister always goes to sleep_____ her bedroom light on.[ ]

About 20 firemen were killed in the fire which broke ______in Yueyang, Hunan Province last week.[ ]

_______wonderful advice you have just _______me!

What ________ useful book ! —Yes, it is. But I found___________ difficult for me to read.

How __________ she was when she didn’t see the famous star!