--Is there      uniform on the sofa?    --No, there is       on the desk.
#52679
A
a, an
B
an, a
C
a, one
D
an, one
推荐题目
— Linlin , _____toy car is that? —It is______. 
#39470
A
who’s ;hers
B
whose ;mine
C
whose; her
D
who’s;my
There’s some litter on the floor. Please ______.
#52697
A
pick up it
B
pick it up
C
pick them up
D
pick up them
元音字母为_______ 
#53576
A
a b c d f
B
a e o u c
C
a e i o u
D
o i u e d