--- Look at ______ book on the desk . Is it ______ useful one ?---Yes, it is . In the book there is much advice on how to learn math well.
#34329
A
a, the
B
the, a
C
the, an
D
a, an
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--- Do you often ride _______ bike to school, Tom?--- No. I usually come to school by ______ bus.
#33386
A
a, a
B
a, the
C
/, /
D
a, /
