The two girls _____ how to dance one month ago and now they can dance well.

Unsatisfied _______ with the payment, he took the job just to get some work experience.

_____is it that is troubling Mary —-Working out the maths problem..

As teenagers, it is not until we are able to face difficulties bravely we are mature enough.

e of his good work, John was ________to a higher class.