Mrs Li, will you be angry your students don’t keep the rules in class–A little, but I’ll stop them nicely.

The witnesses ______ by the police just now gavevery different descriptions of the fight.

The boy _____ out to play until he had finished his homework

We need to get to the root(本质) of the problem we can solve it.

It’s surprising that your brother ______ Russian so quickly－he hasn’t lived there very long.