The soldiers planned to _____ the bridge but had to give up because a storm ____.
It took him a long time to ______ the skills needed to become a professional artist.
We should take care of the blind. It is immoral to _______ them.
Look out! Don’t get close to the building. It _________.
If you _______ spit at all. please spit in the bucket provided.
He is sweating heavily. He _______ weightlifting for a long time.