It's ten years since the scientist on his life's work of discovering the valuable chemical. A. made for B. set out C. took off D. turned up 查看更多

 

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It's ten years since the scientist _______on his life's work of discovering the valuable chemical.

    A. made for         B. set out        C. took off             D. turned up

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It’s ten years since the scientist _______ on his life’s work of discovering the valuable chemical.

A. made for    B. set out?

C. took off     D. turned up?

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It’s ten years since the scientist ____ on his life’s work of discovering the valuable chemical.

A.made forB.set outC.blocked outD.turned up

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 It’s ten years since the scientist ____ on his life’s work of discovering the valuable chemical.

A.made for          B.set out            C.blocked out        D.turned up

 

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It’s ten years since the scientist ________ on his life’s work of discovering the valuable chemical. 

A.madefor

B.tookoff

C.setout

D.turnedup

 

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