We've enlisted a few volunteers to help clean the hall.
The thieves must have had someone on the inside to help them break in.
I hope enough of you are prepared to help with the show.
All her friends have been roped in to help organize the event.
A team of nurses assisted the doctor in performing the operation.
The criminal was told he would be immune if he helped the police.
We were greatly aided in our investigation by the cooperation of the police.
We are sending you some money in acknowledgement of your valuable help.