с заданием, очень нужно А. Допишите текст о роли красных кровяных клеток в функционировании организма, вставив пропущенные глаголы-сказуемые из приведенного списка (глаголы приведены в неопределенной форме активного и
пассивного залога):
to be incorporated, to be transported, to make, to need, to produce, to recycle,
to require, to transport, to use
Every cell of the body . oxygen to do its work. The circulatory
system continually blood and oxygen necessary for normal functioning of the organs. Every day, the body about two ounces of blood. To
replace the old red blood cells, the body iron. Most of the body’s iron
comes from old red cells which the liver . The iron
to the bone marrow where it _
into new red cells.
In infants, all the bones red blood cells, and before birth the liver
and spleen alsothem. There are five to six million red blood cells
per cubic millimetre of blood. Their function is to transport oxygen
