[ Grammar ]
A new flu vaccine _____ in the USA.
A. Has been found
B. Has been finding
C. Is found
D. Has found

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Adverbs, Prefixes, and Suffixes › ViewCHOOSE THE APPROPRIATE FORM OF THE ADVERB
Bruno Mars sang …… at the concert. (magic)
A. magically
B. magicly
Grammar › View
You had better__________with a really good travel agent
A. booking
B. to book
C. with booking
D. book
