The practice of hanging clothes across the sreet is a common______in many parts of the city.
One learns a language by making mistakes and________ them.
good manners to say “Sorry” when you knock into someone butno need to say it again and again .
This kind of picture storiesworth reading , but novels of that kindnot worth reading .
Technology is developing so rapidly thatfor only a year , my cellphone is out-of-date .
First he made a list of the names of those.Then he began to write the invitation cards .