---- Is there a vaccine _____ pig influenza?, I’m anxious to know.----- Don’t worry, there is a vaccine _____ for pigs against pig influenza
-Do you know the great changes happening in the village? -No, it's the first time I __________ here.
Here is so heavy a stone that no man can __________ it up.
An artist who was recently traveling on a ferry to the southern island discovered __________ a long lost antique Greek vase.
If we leave right away,__________ we'll arrive on time.
Barker refused to answer more questions,__________ that he had already said too much.