The government has taken measures to____the high prices of daily goods to keep themarket stable.[ ]

Children under sixteen are not permitted to participate in such kind of activities _____ bad for their mental development

We have ________ school rules in our school.

to make a speech, he said he would be glad to

(2013·浙江，16)The only way to succeed at the highest level is to have total belief ________ you are better than anyone else on the sports field.