Read the following directions on a bottle of medicine：
“Take two tablets(药片)with water, followed by one tablet every eight hours, as required, For maximum(最大量) night-time and early morning relief(缓解疼痛), take two tablets at bed - time, Do not take more than six tablets in twenty-four hours.
For children six to twelve years old, give half the amount for a grownup. For children under six years old, ask for your doctor’s advice.
Reduce the amount if nervousness, restlessness, or sleeplessness occurs,”
The directions on this medicine bottle clearly warn the patient not to take more than _____ .

A．twenty-four tablets a day.	B．eight tablets a day.
C．six tablets a day.	D．three tablets a day.

We can infer from the directions that ______ .

A．the medicine could cause some people to feel nervous.

B．children may take the same amount that grown-ups take.

C．one may not take this medicine before going to bed.

D．the medicine is a liquid.

If one cannot sleep, it is suggested that he _____ .

A．take two tablets before going to bed.

B．take less than two tablets before going to bed.

C．stop taking the medicine.

D．ask advice of a doctor.

Obviously the medicine _______ .

A．may be dangerous to small children.

B．cannot be taken by children under twelve years old.

C．may be taken by children but not by grown-ups.

D．may be taken by grown-ups but not by children.