Complete the sentence with the correct form of the verb in brackets: Take a charged power bank now as a precaution in case the tablet ___ of power during tomorrow's inspection. (run)
Correct answer
- runs out
- should run out
Explanation
Runs out and should run out are both standard in this precaution clause in contemporary British English. Will run out is the closest distractor because an in-case clause normally uses a present form or the formal should construction rather than a future auxiliary.