You should take _______ on time, _______ each time, and two times a day.

阅读理解：阅读下列短文，从所给的四个选项中，选出最佳答案

　Do you always understand the instruction on a bottle of medicine? Do you know what is meant by “Take only as instructed?” Read the following instructions and see if you understand them?

　“To reduce（减少）pain, take two pills with water, followed by one pill every eight hours． Do not take more than six pills in twenty-four hours．”

　For children, 6 to 12 years old, give half the amount（量）．

　For children, under 6 years old, ask your doctor．

　Reduce the amount if you can hardly rest and sleep well after you take the medicine．

1．How many pills at most can a person over 12 take in 24 hours?　　　　　　　　　

[　　]

A．Three　　　　　　　　B．Four

C．Six　　　　　　　　　D．Eight

2．How many pills should a nine-year-old child usually take in 24 hours?

[　　]

A．Half a pill　　　　　　　B．One pill

C．Two pills and a half　　　D．Four pills

3．What will one do if one cannot sleep well after taking the medicine?　　　

[　　]

A．Stop taking the pill．

B．Don't stop taking the usual amount．

C．Take more than the usual amount．

D．Take less than the usual amount．

4．According to the instructions we know that the medicine ______．　　　

[　　]

A．helps you to fall asleep quickly

B．may be dangerous to small children

C．cannot be taken if one cannot fall asleep

D．should not be taken by children under six

5．Maybe the passage is taken from a ______．　　　　　　　　　

[　　]

A．textbook

B．newspaper

C．bottle of medicine

D．doctor's workbook