Regular exercise is ...		about 2.5 litres of fluid each day.
A balanced diet should		be kept warm and lying down.
Medicines should ...		provide all the nutrients needed.
A patient in shock should ...		by using non-sterile needles.
Not taking any exercise is ...		good for the heart.
Reading in bad light can ...		be kept out of the reach of children.
You should do ...		make the eyes ache.
A normal adult should drink ...		burn easily in the sun.
HIV can be transmitted ...		an unhealthy way of living.
Bad posture can ...		cause back pain.
People with fair complexions ...		five minutes' exercise every morning.