So convenient ______and saves your time that many people would like to do that.
He was walking along the sands ______ he saw a big footprint in the sand.
In public places, we can often see ______ that tell us useful things, such as no parking, no smoking, etc.
It ______ delicious, so the cake was eaten up and mother smiled.
The boy is ______ computer games and stays in the Internet cafe all day and night.
The government is trying to do something to ______ the employment rate so that more people have jobs.