The day will come _____ the people all over the world will get rid of poverty.

I’m afraid you missed a fantastic lecture yesterday. How come you were absent from it?—If you _______ know, I asked for a day off and visited a relative of mine in hospital.

This coastal area anational wildlife reserve last year.

___ himself with confidence, the young manwent to the manager’s office bravely.

Susan advised me not to buy the vase, but I bought it _____