His mother kept telling him to____ his manners at the party.So he became impatient. 

I’d like to start my own business –that’s        I’d do if I had the money.    

Every family in America has had this sort of experience______there was a price increase of nearly one-third in the past two years

Pop music is such an important part of society ________it has even influenced our language.  

(2013·陕西宝鸡二模)The British are not so familiar with different cultures and other ways of doing things, ________ is often the case in other countries.