____ Browns were having breakfast at seven this morning.
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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
There is no ______ book on the desk.
A. the
B. a
C. /