Mr.Black used to be a worker,_________–Yes,he_______. Now he is a policeman.

Our English teacher loves us very much and he ________.

We shouldn’t complain about being poor— many families are ____ than we are.

Both Class 3 and our class won’t be able to finish the work unless they ___ each other.

Some people have no idea that by helping a criminalthey could ________with a prison sentence