Why does Miss Rowling consider herself very lucky（）

A．It actually does more harm than good.
B．It causes damage to some organs of our body.
C．It works better when combined with other remedies.
D．It helps us to recover much sooner.

A．They should make sum their children are always punctual for school.
B．They should ensure their children grow up in a healthy environment.
C．They should help their children accomplish high-quality work.
D．They should see to it that their children have adequate deep.