Ifwenowtoprotecttheenvironment

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If we________now to protect the environment，we’ll live to regret it.

A．hadn’t acted	B．haven’t acted
C．don’t act	D．won’t act

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_______ with care, one tin will last for six weeks.

A．Use

B．Using

C．Used

D．To use

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Film has a much shorter history, especially when such art forms as music and painting.

A．having compared to	B．comparing to
C．compare to	D．compared to

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_____ in a white uniform, he looks more like a cook than a doctor.

A．Dressed

B．To dress

C．Dressing

D．Having dressed

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When for his views about his teaching job, Philip said he found it very interesting and rewarding.

A．asking

B．asked

C．having asked

D．to be asked

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—Jones! Roy has broken the glass.
—Such things happen.

A．Doesn’t matter.	B．How come?
C．What a pity!	D．What has become of him?

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