g back upon my teaching career, I don’t remember ever having been doubted, or challenged in class, ________ rejected.

I ___________ in the street when I met an old friend of mine yesterday

as he is, Sunyang must have gained ________ richexperience in ________ society as well as sports.

Excuse me, is the post office— About 500 metres away.

The boss said we had only three days to finish the work.—Don’t worry.We have already________two thirds of it.[ ]