His father ________ for a week.
They work day and night; however, _______ of the money they make goes to their so-called eldest brother.
The one and only thing I ____ is whether you take a good rest!
— Is there anything you want to know? — I just wonder ____ that makes Jim so excited.
She says she still remembers the things and the persons ______ I told him last year.
The manager insisted that the work ____ finished by the end of this month.