A．The ice was cut and handled with the help of some special tools.
B．The ice was taken from the flowing river with hooks and carried by sleds to icehouses.
C．The ice was carried on the frozen surface of the pond or river.
D．The ice was sawed into even blocks by workers.

A．The patient has no stress in her life.
B．The patient suffers from stress in her work, life and finances.
C．The patient is very busy and does not have enough time for sleep.
D．The biggest problem with the patient is her tack of physical exercise.