We can have ___ bluer sky if we create ___ less polluted world.
#34197
A
a. a
B
a, the
C
the, a
D
the, the
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Is ___ woman in red your mother? –Yes. She is ____ teacher and works in our school.
#33988
A
the, /
B
a, the
C
the, a
D
a, a
. A: Bob, you look so happy today!B: Well, I got _____________“A ”on my English test．
#34190
A
an
B
a
C
the
D
/