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This  is      ruler .      ruler  is  yellow .
#33873
A
the ; a
B
a ; A
C
the ; The
D
a ; The
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— Sandy, _______ apple on the table is for you. Remember to eat it.—Thanks, I will. _____ apple a day keeps the doctor away.
#33677
A
the; An
B
a; An
C
an; The
D
the; A
English is _________ international language. 
#34454
A
a
B
an
C
/
D
the
‘I’____the first letter in the word‘irregular’,and there is___‘u’and ___‘l’in it.
#32393
A
is, a, an
B
am, an, a
C
is, an, a
D
am, a, an
 —What do you usually have for breakfast?—A piece of bread and ________ egg.
#32172
A
an
B
the
C
a
D
/
 What __________ good time we had having a picnic yesterday!
#32058
A
a
B
an
C
/
D
the
不定冠词(a,an)
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