We can have_______ bluer sky if we create_______

We can have_______ bluer sky if we create________ less polluted world．

#34650

a；a

a；the

the；a

the；the

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Do you have _________ eraser?

#34613

some

many

Though he is _____ ugly boy, yet he often comes _____ first in the exams.

#34161

a; /

an; /

an; the

a ; the

It takes us about ____ hour to get to the Yangzhou-Taizhou Airport from Taizhou by ____ bus.

#33112

an; a

a; the

an ; /

a ; /

--Is this  _______ pencil case?  --No, it’s ______ eraser．

#34063

a; /

an; a

a; an

an; /

 I get _____ flu. I should see a doctor at once.

#32010

the

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