---- Is there a vaccine _____ pig influenza?, I’m anxious to know.
----- Don’t worry, there is a vaccine _____ for pigs against pig influenza
A.for; available | B.against ; use | C.to; access | D.against; available |
---- Is there a vaccine _____ pig influenza?, I’m anxious to know.
----- Don’t worry, there is a vaccine _____ for pigs against pig influenza
A.for; available | B.against ; use | C.to; access | D.against; available |