________busy yesterday, or he__________you with your experiment.

Mr Smith will not be able to attend his son’s wedding ceremony, because he ________ an important speech.

I want to teach in Tibet when I graduate from the college.—Me too. Teachers ___very much there.

I think I’m too young to be a good manager.—_____ you can be mainly depends on your ability, not your age.

Tomdidn’t go to school_______ this morning because he overslept.