If the quantum computer calibrated correctly during the installation phase last month, the laboratory generating highly precise simulation data today.
Choose the correct pair of verb forms to complete this mixed conditional sentence.

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A was / would be
B had been / would be
C had been / would have been
D was / would have been

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Answer: B. had been / would be

Correct Answer: b) had been / would be
Explanation: This is a mixed conditional timeline. It links a counterfactual past state (If + past perfect: had been) to an ongoing, alternate present outcome (would + base verb: would be).

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If the quantum computer ________ calibrated correctly during the installation phase last month, the laboratory ________ generating highly precise simulation data today. Choose the correct pair of verb forms to complete this mixed conditional sentence.

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If the quantum computer calibrated correctly during the installation phase last month, the laboratory generating highly precise simulation data today.
Choose the correct pair of verb forms to complete this mixed conditional sentence.