---This is useful machine which was made in ________thirteenth century
#32923
A
a, the
B
an , the
C
/, the
D
the , /
推荐题目
Most of the choices appear to be ones that you are familier with, but after taking second look, you will find that they are different.
#33946
A
/; the
B
the; the
C
the; a
D
/; a
My brother is studying in ______ university in America; he wants to be ______ astronaut in the future.
#34026
A
a; a
B
a; an
C
an; a
D
an; an
