Between the two parts of the concert is an interval, ______ the audience can buy ice-cream.
—Where is our English teacher? —She is in the classroom, _____ the exercises _________ the students have done at home.
I feel like drinking some water, but there is ________ left in the bottle.
----Have you got the result? ----No, It will be some time ________we know the result.
. Little ______about his own health though he was very ill.
The light will be thrown ______ the cause of cancer by research that is now in progress.