Is_____ necessary ____them to stop ________ every two hours?
A.that; for; resting | B.that; of; to rest | C.it; for; to rest | D.it; of; resting |
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Is_____ necessary ____them to stop ________ every two hours?
A.that; for; resting | B.that; of; to rest | C.it; for; to rest | D.it; of; resting |