The saying A tree can’t make a forest (森林) tells us that _____ is very important in a football match.
–Don’t keep water running when you wash hands. – .
– Do you know ? – Sorry, I don’t have a watch.
–How often do I need to feed the dog? –It food every day, or it will be hungry.
– Will you go for a picnic this Saturday? –I think I will go if we any classes.
. –Mike, where is Miss Li? –She a speech on Chinese art to students in the hall.