You ________ stop when the traffic lightturns red.

I can’t give my son the leading position _____, he is too young; secondly, I want Mr Smith to have the job [ ]

Jenny and Peter, could you tell me something about the new film ‘The Penguins(企鹅) of Madagascar’—Sorry, ______ of us has ever seen it.

–When were the soldiers sent to the earthquake-stricken area — _______ the earthquake broke out.

I can’t stand ______ with Jane in the same office.She just refuses ______ talking while she works.[ ]