ssible means ____ to prevent the air pollution,but the sky is still not clear.

usic like hip hop can make a driver drive far more ______, braking harder and accelerating faster.

We have many cases where hard work as well as good communication skills have ___________ one’s chances of success in the past years.

This morning I saw an old friend of mine in the streetby ______.

I have reached a point in my life ________ I am supposed to make decisions of my own[ ]