ЧТО НУЖНО ВСТАВИТЬ??? 
 Yesterday Cyril (did, does,done) his morning exercises at 7. When he (was doing. does, did) his first exercise, he (raised, raises, raise) up his hands. While he (done,did,does) that, he (was breathing in, were breathing in, breath in) in. Then he (lower, lowered, was lowering) his hands. While he (done, did, does) that, he (breath out, was breathing out, breathing out) out. He ( repeated, repeat, was repeating) that exercise five or eight times.