Question

Scientists_
(had grown/have grown/ grew) a perfectly compatible ear in a lab and_
(grafted/have grafted/had grafted) it on to a patient in what they_ ( have said / had said/ said) was a world first in regenerative medicine.​

Answer 1

Answer:

1 had grown

2 grafted

3 said

Answer 2

Answer:

grown

grafted

gone

Explanation:

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