单句语法填空
【小题1】The local government will provide more economically ______________（afford）housing for its residents this year.
【小题2】The teacher told us only ______________ this means could we work out the problem.
【小题3】Every possible means ______________（try）, but we still cannot solve the problem.
【小题4】These rules tell us how  a sentence ______________（break）down into several parts.
【小题5】A person ______________（aim）at nothing is sure to fail.
【小题6】Caught on the spot,  he had no alternative but ______________（admit） the mistake.