Despite his failings, Lang's father was commercially______and fantastically hardworking, and under his______the construction business flourished.

A． bottle : tonic
B． incubator: microorganism
C． orchard : underbrush
D． pipeline : gas
E． washroom : hygiene

A． passionate
B． critical
C． sedulous
D． interesting
E． considerable

A． static
B． noble
C． protean
D． documented
E． inconsistent