Juiceandwaterarehealthydrinks,_____Cokeisn'thealthydrink
About________percentoftheearth'ssurfaceiscoveredwithwater
()TheboysarefromTokyo.Theyare______.
()______ismyumbrella?It'soverthere.
--Thankyouverymuch!
--________.
three__________(序数词)