I think whoever makes______contributions to the company than the others should get____income.
Never before ___________in greater need of technical experts than it is today.
Only when _______ possible to settle the problem.
I’m afraid we can’t have coffee; there’s _____ left.
Mr Ascot, headmaster of the school, refused to accept ______of the three suggestions made by the Students’ Union.
If you can dream_______, you can do ________.