1.Your bones are constantly receiving and losing calcium,the mineral that-----them strong and break resistant.
2.The process starts to reverse,possibly----osteoporosis.
3.------your risk,while you are still young ,make sure your diet contains-----calcium
4.You can halt or reverse the progression of osteoporosis at virtually----stage
a.makes b.make c.making d.to make
a.result is b.resulting in c.result as d.to be resulting
a.as low as b.it is lower c.lowers d.to lower
a.enough b.sufficiency c.adequately d.necessarily
a.their b.the c.any d.which