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I have _____ American friend. He is _______active boy.  
#34378
A
a, an
B
a, a
C
an, a
D
an, an
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 —Can you play ________ guitar?—Sure. It’s a piece of cake for me.
#32085
A
a
B
an
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the
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Red and white are     good match, as      powerful red balances     calm white.
#33021
A
a, /, /
B
/, a, a
C
the, a, /
D
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—It is       useful book.—Yes, it tells us how to play       football.
#33594
A
an； /
B
a； /
C
a； the
D
an； a
It’s _______  MP5 . It can be used to listen music and watch movies . It’s ________ useful invention .
#32500
A
a ; a
B
a ; an
C
an ; a
D
an ; an
Have you ever been to ______ aquarium in Qingdao before?
#33991
A
a
B
an
C
the
D
/