-What's that?      -It's     _apple.
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A
a
B
an
C
the
D
/
推荐题目
________ old man behind Mary is ________ university teacher.
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A
An, an
B
A, the
C
The, a
D
The, an
I have ____MP4._____MP4 is nice.
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A
a,The
B
an,The
C
a,An
D
/,The
 Ben has an    book.
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A
fun
B
difficult
C
interesting
D
boring