In terms of football-training, coaching is no use__ the coaching advice is followed.
A．since
B．unless
C．once
D．if
Years ago, the attitudes of business people toward marketing research could be______as "If it's not broken, don't fix it."
A．presumed
B．concluded
C．abstracted
D．summarized
If the teacher had caught them cheating, she would______furious.
A．had
B．have done
C．be
D．have been
Some people think more of animals than will of children.
A．they have
B．they had
C．they are
D．they do
The marketing concept is the philosophy that firms should analyze the needs of their customers and then make decisions to______those needs.
A．satisfy
B．comfort
C．appease
D．convince
Continuous improvement is a preferred method of innovation and produces ______results.
A．affecting
B．effective
C．exciting
D．surprising