It was not until all the fish died in the river_____the villagers realized the serious pollution.
—I put him down for a well-educated man.—___________ ?—I mean that he's a well-educated man.
Jack is one of those men who_________ best evening the most difficult situations.
--Whose advice do you think I should take?--___________.
__________ you understand the rule, you will have no further difficulty.
You____________ this morning if you really wanted to see it yourself.