__________ the help of modern technology, scientists got a photo of a black hole.( )
A.AtB.InC.OnD.With
Elsa lives on the _____ floor.( )
nine
ninth
nineteen
ninety
The theater _____ to celebrate the Art Festival last month.( )
decorated
is decorated
was decorated
has decorated
My Chinese teacher often asks me _____ notes which reading a book.( )
take
takes
taking
to take
The policeman give us much _____ on how to protect personal information.( )
tip
reason
advice
suggestion.
Did you do the homework _____?
Yes, I finished it on my own last night.( )
you
your
yours
yourself