The doctors in ORBIS have done ______ animportant job ______ the patients are all grateful to them.

People who want to cross Canada in less than five days forget the fact _____ Canada is 5,500 kilometers from coast to coast.

The disabled _____ able to do the same things as common people.

I have a lot before the exam so Ican’t watch too much TV now．

－Where did you put the car keys?－Oh, I ______ I put them on the chair because the phone rang as I _______ in