We can have_______ bluer sky if we create________ less polluted world．
#34650
A
a；a
B
a；the
C
the；a
D
the；the
推荐题目
The car accident happened ____ a cold winter morning. Luckily, no one was hurt.
#32308
A
in
B
on
C
at
D
of
--- Why did you laugh just now?--- John wanted to tell us very funny joke, but he forgot end himself.
#33390
A
/; the
B
a; an
C
a; the
D
the; the
Ihis is ______book I've told you about. It's written by_____ university teacher．
#34159
A
the;an
B
a;an
C
the;a
D
a;the
--- Mary knows so much about ______earth! ---Yes, although she is only ____eight- year-old girl.
#47156
A
an; a
B
the; an
C
the; a
D
an; an