Find ways to praise your children often，________ you'll find they will open their hearts to you.(2011·山东)
A．till B．or C．and D．but
Sometimes proper answers are not far to seek ________ food safety problems.
A．in B．to C． on D．after
He was a good student and scored ________ average in most subjects.
A．below B．of C．on D．above
I would like a job which pays more，but ________ I enjoy the work I'm doing at the moment.
A．in other words B．on the other hand
C．for one thing D．as a matter of fact
His efforts to raise money for his program were ________ because no one showed any intention to take a cent out of their pockets.
A．in place B．in sight C．in effect D．in vain
We hadn't planned to meet.We met ________ chance.
A．of B．in C．for D．by
