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1 vote
blank and blank are the two helping verbs that are used when writing a sentence in the present perfect. A. haben, sein B. sein, werden C. werden, sein​

User Cory Trese
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1 Answer

2 votes

Answer:

a and c

Step-by-step explanation:

A and C mean to be but B is will become


so I think a and c

User Bruno Lee
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