—How much vinegar did you put in the soup? —I’m sorry to say, ____. I forget.
--I'm going to the post office. --_______you're there, can you get me some postcards?
Are you paying now, or shall I ____ to you?
These winners from that key school are wise and diligent, actually there are _ ____students in that school
There is an increase of 16% in the consumption of tobacco______ the previous year.
John seems a nice person. ____, I don't trust him.