I listened carefully to his long boring speech, but could not ___ what he was talking about.
______ is generally accepted, economic growth is determined by the smooth development of production.
We are taught that a business letter should be written in a formal style _____ in a personal one.
Maria has written two novels, both of ________ have been made into television series.
Living in the central Australian desert has its problems, _____ obtaining water is not the least.
Who would you rather the report instead of you?