_____ the great efforts we had made three years before, we failed to carry our plans through.
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?
They lost their way in the forest, and ___ made matters worse was that night began to fall.