The first harvest was the ______ corn harvest.

The advantage of this method was that the dried corn co...

填空题The advantage of this method was that the dried corn could be stored for long periods of time without ______.

Most of the corn was dried and then ______.

填空题Most of the corn was dried and then ______.

The main subject of the talk last time was ______ of ea...

填空题The main subject of the talk last time was ______ of early agriculture-based society.