18.Nancy let me repeat her instruction sure that I understand what was after she was away on business. A.to make; to do B.making; doing C.to make; to be done D.making; to do 查看更多

 

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Nancy let me repeat her instruction _______ sure that I understand what was ______ after she was away on business.

A.to make; to do                                            B.making; doing

C.to make; to be done                                    D.making; to do

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