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at；on at；for for；at for；on
am used to live;use to keeping used to live;has been used to keeping have been used to living;was used to keep was used to live;was used to keep
as though now that before long in case
convinced stressed saw to it ensured
are used; to keep informed have come into use; to keep people informed come into use; keeping informed have been in use; informed
setting up setting down keeping up keeping out
in, at at, in in, for at, for
to practise practising practise were keeping
in, at at, in in, in at, at
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