To do some voluntary work for the 2nd Youth Olympic Games is ______ excellent chance for us to serve our hometown—Nanjing.
#34666
A
a
B
an
C
the
D
不填
推荐题目
---This is useful machine which was made in ________thirteenth century
#32923
A
a, the
B
an , the
C
/, the
D
the , /
Before I talked with ______ scientist, I had never met______ clever person like him.
#34148
A
the; a
B
a; a
C
the; the
D
a; the