(2014·江苏苏州六校联考)The train moved slowly from the station，but________speed as it reached the open country.

It was a long time before the police________what he was really doing.

----May you _______ the experiment!　　----Thank you very much.

In the country guests tend to feel they are not highly __________ if the invitation to a dinner party is given only three or four days before the party date.

After going into the concert hall, the mother _____ a friend and went over to greet him.