It has been________that the gold coin was made five hundred years ago from the date marked on it.[ ]

China needs to strike a balance between maintaining a ______ fast and stable development and economic structural adjustment.

This new model of car is so expensive that it is the reach of those with average incomes[ ]

reen often said “God helps those who help themselves”, intending to _______ on us the significance of being independent.

We’d better stay here a little longerhe turns up unexpectedly