Weonthisprojectforfourhours.Le

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We _____ on this project for four hours. Let’s have a rest.

A．are working	B．have been working
C．worked	D．had worked

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Since Tom ______ downloaded a virus into his computer, he
can not open the file now.

A．readily	B．horribly
C．accidentally	D．irregularly

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He began to take political science ____ only when he left
school.

A．strictly	B．truly
C．carefully	D．seriously

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She devoted herself ______ to her research and it earned her a
good reputation in her field.

A．strongly	B．extremely
C．entirely	D．freely

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The committee is discussing the problem right now. It will_____ have been solved by the end of next week.

A．eagerly	B．hopefully
C．immediately	D．gradually

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一Have you handed in your schoolwork yet?
一Yes,I have.I guess it _____ now.

A．has graded	B．is graded
C．is being graded	D．is grading

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