30. Mr. Keller ______ forty cigarettes a day until he gave it up.
The belief ________ people find it more convenient to stop on Sundays ________ in the research.
Tom came back with a message ________ there would be a test soon.
They have no idea at all ________.
The notice came around two in the afternoon _______ the meeting would be postponed.
—Is there anything else to discuss?—_______. I guess.