..More than 60 million people in southwestern China ________the drought nowadays as a result of less rainfall, environmental damage and so on
---______ the farmers discovered the entrance to the secret cave in the valley?--- Totally by chance.
One more month, _______ the grapes in the yard will be ripe.
_______these coins are of different shapes, sizes and colors, they all date back to a long, long time ago.
When _______ about their opinion of the effect of modern equipment on their performance of tasks, many young people gave a positive response.
-----Have you heard the amazing news? -----But it _______ be true. Anyone with common sense won’t believe it.