(2014年山东日照市高三校际联合检测)l.We can never expec
题型:选择题
问题:
(2014年山东日照市高三校际联合检测)l.We can never expect____bluer sky unless we create_____less polluted world.
A.a;a
B.a;the
C.the;a
D.the;the
(2014年山东日照市高三校际联合检测)l.We can never expect____bluer sky unless we create_____less polluted world.
A.a;a
B.a;the
C.the;a
D.the;the