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It is necessary to help____________ poor.
#34424
A
a
B
an
C
/
D
the
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This is ________ pear. That’s ________ apple.
#33006
A
a...a
B
an...an　　　　
C
a...an
D
an...a
This morning I have _______ art lesson. Art is _______ useful subject.
#33421
A
a; a
B
an; an
C
a; an
D
an; a
Mr. Black often goes to work by______ bus.
#32123
A
a
B
an
C
the
D
/
The old man has________ useful horse and            horse can do a lot of things for him.
#32722
A
an; a
B
the; a
C
an; the
D
a; the
----How long does it take us to go to your hometown from here? ----It takes us      hour or more to go to my hometown by       train.
#34480
A
an; a
B
a ; an
C
an; /
D
a; /