The old man was ill in ___ hospital.
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____ Browns were having breakfast at seven this morning.
A. The
B. /
C. A
I live in ____ northeast of China.
A. the
B. a
C. /
What ___ interesting book it is!
A. the
B. an
C. a
We are going to have an exam ____.
A. in the class
B. in class
C. in a class