It is reported that a kind of new smart phones can test the air quality(质量)around you.
__________fast the technology develops! ( )
A.WhatB.What aC.HowD.How a
She always does her homework ____ than her brother.( )
careful
more careful
carefully
more carefully
The man is a famous musician.He has written____ of songs for the singers.( )
hundred
hundreds
a hundred
two hundreds
Sorry,I know ____ about the news.You can ask Peter.( )
nothing
anything
something
everything
﹣Can I help you?
﹣I'd like____ for my daughters.( )
two pair of shoe
two pair of shoes
two pairs of shoe
two pairs of shoes
﹣What do you want to be when you grow up?
﹣I want to be____ engineer.( )
a
an
the
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