This house is one of ________ buildings in the town．We must take actions to protect it．

The English teacher herstudents how to improve their comprehension skill since last week.

I don’t like _____ away for too long.　

It was how the disabled had managed to dragthe child off the tracks the very moment when the train came______touched theaudiences

The water in the river isn’t fit to drink, for you know, it __________.