A palavra although na sentença "Although individuals
seem to differ in their vulnerability to caffeines influence,
if drunk in moderation, the risks appear
negligible."(linhas 2-3) equivale, em termos de
significado, a
A palavra "their" na sentença "The greatest reason
people drink caffeinated beverages is to increase their
energy and alertness."(linha 18) refere-se a
A palavra "however" na sentença "However, regular
caffeine consumers may develop a caffeine tolerance
that prevents blood pressure elevations, according to
other studies."(linhas 16-17) poderia ser substituída
por
A palavra that na sentença "For an adult, that means
no more than 300 mg daily, which is three cups of coffee,
four cups of regular tea, or six cans of cola." (linhas
28-29) refere-se à seguinte expressão