54.A.although B.since C.as D.unless 查看更多

 

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         he has limited technical knowledge, the old worker has a lot of experience.

       A.Since                  B.Unless                 C.As                      D.Although

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___________ he has limited technical knowledge, the old worker has a lot of experience.

A.Since

B.Unless

C.As

D.Although

 

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________James was sleepy, he stayed up late to finish his project.

A. As         B.Since

C.Unless    D.Although

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________ he has limited technical knowledge, the old worker has a lot of experience.

[  ]

A.Since

B.Unless

C.As

D.Although

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________ he was limited technical knowledge, the old worker has a lot of experience.

[  ]

A.Since

B.Unless

C.As

D.Although

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