An old lady came _________ to the bus stop, only _______ the bus had gone.
.None of them ______ my friends.
.Not only the whole nation, but the whole Europe , indeed the whole human society ______ to alter its attitude to racial problems.
.Getting to other planets or to the moon _____ many problems.
.In that country, the rich ______ richer, the poor, poorer.
.The project requires more labor than ______ because it is extremely difficult.