Peter was so excited he received an invitation from his friend to visit Chongqing.
Most people will gradually gain confidence as they________life.
It is requested that the machine be operated according to the________.
-Mary,could you please post the letter for me while you are out? -________
Tom's first job was at a local restaurant in his early twenties,________he worked for seven years.
She felt ________ awkward because of her bad performance on the stage.