Question

He stretches himself a few times to see if every muscla is in full working order. (split the sentence)

Answer 1

he stretches himself a few times so that every muscles is in full working order

Answer 2

⛦Hᴇʀᴇ Is Yoᴜʀ Aɴsᴡᴇʀ⚑
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❖ Question:-
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He stretches himself a few times to see if every muscle is in full working order.

▶ So, Answer is:-
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➙ He stretches himself a few times so that every muscle is in full working order.

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Thanks...✊