【C10】A．combinationsB．connectionsC．co－ordinationsD．collections

【C10】A．ByB．InC．ThroughD．With

【C10】A．stillB．alreadyC．tooD．yet

【C10】A．occasionsB．opportunitiesC．circumstancesD．schedules

【C10】A．theirB．theC．thoseD．these

【C10】A．isB．areC．hadD．／

A．combinationsB．compoundsC．componentsD．complements