Someoneatthedoor.Canyouopenit?

Someone ______ at the door. Can you open it?

A．knocks	B．knocked
C．is knocking	D．was knocking

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— What would you like to drink?
— It doesn’t matter. ______ will do.

A．Nothing

B．None

C．Something

D．Anything

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They learned it all by themselves. That is to say nobody told them ________ .

A．what to do it

B．how to do it

C．where to do

D．when to do

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--- Are there ___________ students in your school?
--- Yes, _____________ the students is about 2000.

A．a number of; a number of	B．the number of; the number
C．a number of; the number of	D．the number of; a number of

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___________ it snows, ____________ the children feel.

A．More heavily; the happier	B．More heavily; happier
C．The more heavily; happier	D．The more heavily; the happier

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Luo Yang devoted all his life _________for China Nation Aviation(中国航天).

A．to work

B．work

C．to working

D．worked

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