John says that his present job does not provide him with enough _____ for his organizing ability.
Only _____ as an interpreter _____ how important it was to practise speaking English.
Only when _____ possible to settle the problem.
The boy said ___ couldn't he work out the problem but his teacher didn't know how to do it.
The headmaster hurried to the concert hall only _________ the speaker
.Only in this way ______ get rid of the bad habit-smoking.