It is the duty of the police to ______ social order.

Judging by her ____, Mrs Smith must be a southerner.    

The lack of money forced them to________their research.

John said he wasn't disappointed at the result of the basketball game, but the look on his face ________ him ________.

The plan you have given us sounds good, but I am afraid it doesn’t seem very ________as far as this job is concerned.