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Her daughter began to play _____piano when she was five. Now she's very good at it.
#34521
A
an
B
a
C
the
D
/
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Teaching is _________ interesting work.
#34233
A
a
B
an
C
\
D
a very
 ---- Can you take photos with elephants? ---- Certainly. ______ elephant is ______ useful animal. I like them.
#32959
A
A, an
B
An, an
C
The, an
D
The, a
Don’t you think this is          useful advice?
#34583
A
the
B
a
C
an
D
不填
This is ____ orange book and that is ____ apple.
#33018
A
a , an
B
an , a
C
an , an
D
a , a
There is ______ “u” and ______ “s” in the word “bus”.
#33430
A
a, a
B
a, an
C
an, an
D
an, a