---_______ one and a half months enough for the project to be finished? ---I am afraid not. The professor is ill and only after he recovers ________ go on with it.
—The plane is due to take off at 7:50 from the airport.—________ we fail to arrive there on time?—Try to take another flight then.
The traditional view is ________ we sleep because our brain is “programmed” to make us do so.
The door burst open and ________,shouting with anger.
Fog ________ the train timetable.
________ we go swimming every day ________ us a lot of good.