To their surprise, they found the lecture given by the famous professor easy ______.
At last,the boy acknowledged the money from his mother’s pocket.
Tony was very unhappy for to the party.
In order to reduce the increasing prices of vegetables,the toll(过路费) if a truck carrying them passes through a toll sration.
He left the place, ____ never to return.
The manager promised to keep me ____ of how our business was going on.