ishelpfultoourenvironment.A．Cu

________is helpful to our environment.

A．Cutting down trees	B．To protect animals
C．Not riding in cars	D．Recycle paper

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相关试题

She has finished typing but she doesn’t know _______ next.

A．what to do	B．how to do
C．what should she do	D．how she should do

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The kind teacher devoted all her time ___________ her students.

A．help

B．to help

C．helping

D．to helping

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— It’s dangerous to walk across the street carelessly.
— You’re right. We can’t be careful while crossing the street.

A．so

B．very

C．too

D．more

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It’s quite clever ________ you _______ out the problem.

A．for； working	B．for； to work
C．of； working	D．of； to work

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---Tom， you play football in the street. ---Sorry， I do it again.

A．needn’t； won’t	B．mustn’t； won’t
C．can’t； will	D．won’t； can’t

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