I__________ you an apology for what I said this morning. Anyway, I meant no offence.
It is quite clear ____ he won't see us.
1 feel that one of my main duties ______ a teacher is to help the students to become better learners.
___ he did it remains a secret.
It was a pity that the great writer died _________his works unfinished.
That is not ____ I want.