Be careful to move the equipment --- ______ it gently.
He was disappointed ____ he had learned from books quite differed from his actual life.
Our community appears more beautiful with green grass and colorful flowers ____ here and there.
They chatted ____ coffee about their experience as volunteers during the charity.
A programmer may make mistakes in a wrong analysis of the situation _____ the programme was based.
__________ the directions exactly, you will never get confused.