Question

QUAL O TEMPO VERBAL USADO EM: “Tablets and e-readers "have not been" in widespread use long enough for the sorts of extended studies that "will reveal" their effects on learning” *

PRESENT PERFECT - SIMPLE FUTURE
PAST PERFECT - SIMPLE PRESENT
SIMPLE PAST - SIMPLE FUTURE
PRESENT CONTINUOUS - PAST CONTINUOUS

Answer 1

Resposta:

nao sei

Explicação:.