We _____ know things about each other that we should not know, have no right _____, and have a right, actually, not to know.

Scientists study ____ human brains work to make computers.

He said ______ couldn’t he work out the problem but his teacher didn’t know how to do it

It’s our hope that we’ll play a greater role in the market and _____ supply more jobs

The pronunciation of the speakers living in London is judged to be more native than ______ of the speakers from Liverpool.