I have been trying to advise them not to act that way, but my advice had no _________on them.

It’s a teacher’s _____ to make children learn.

Teachers have to constantly update their knowledge in order to maintain their professional(专业的)_______.

My colour TV set is only one year old and it is still under _____. 

Over two thirds of the population were believed to have no ______ to the health care in the west rural area in China.