All that can be done . a. has done b. has been done c. have done d. have been done——青夏教育精英家教网—

摘要： All that can be done . a. has done b. has been done c. have done d. have been done

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. All that can be done ______.

A. has done B. has been done C. have done D. have been done

All that can be done ______.

A.has done　　 B. has been done　　　　 C. have done　　 D. have been done

All that can be done ____.

A.has been done B.have been done C.have done D.has done

All that can be done _______.

A. has been done B. has done C. have done D. were done

All that can be done _______.

A. has been done B. has done C. have done D. were done

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