______ is known to us all is that the old worker, ______ life was hard in the past, still works hard in his seventies.
Our daughter doesn’t know what to at the university ; she can’t make up her mind about her future .
Difficulties and hardships have ________ the best character of the young geologist.
—Have a good rest ; you need to your energy for the football match this afternoon .—Thanks a lot .
—Could we stay here for the night?—Sorry. I have ____ to hold you all.
-If I’m not mistaken, your birthday is coming up. Has your brother sent you anything?-Not yet. He never forgets, _________.