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________ their inexperience, they’ve done a good job.

A. Giving       B. To give  C. Give      D. Given

________ their inexperience, they’ve done a good job.

   A. Given        B. To give           C. Giving         D. having given

________ their inexperience, they’ve done a good job.

   A. Given        B. To give           C. Giving         D. having given

________ their inexperience, they’ve done a good job.

   A. Given        B. To give           C. Giving         D. having given

_____ their inexperience， they’ve done a good job.

A. Given               B. To give       C. Giving         D. To have given