There's ____apple tree behind _____ house.
A. an, a
B. a, a
C. an, the
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We have had _______.
A. good dinner
B. a good dinner
C. the good dinner
_____ birds can fly very high in ____ sky.
A. The, the
B. The, a
C. An, the
--Who are those boys?--One is my brother and ______.
A. the big boy is Mike
B. abig boy is Mike
C. thebig boy is a Mike
My uncle told me he was going to visit _______.
A. the United State
B. the United States
C. United State