-_______ Andrew_______ Australia for2 years?- Yes, he______ there in 2012.
There is a cat _______ a dog. A. chase B. chased C. chasing
Mike, do you know which CDs belong to _______? A. my B. ours C. us
It’s reported that a tiger escaped _______ the zoo yesterday. A. in B. on C. from
The work is so difficult that I don’t know _______ to do it. A. what B. how C. where
If I _______ you, I would stop looking for it. A. am B. being C. were