21、Kate Green is nine years old．She has a bad cold and coughs day and night．Then she goes to see the doctor．The doctor gives her some cough medicine．Here is the instruction（說明）．

1．How much medicine should Kate take each day?

A．One teaspoon．     B．Two teaspoons．         C．Three teaspoons．

2．What should Kate do before taking the medicine?

A．Wash the bottle．   B．Shake the bottle．        C．Keep the bottle cool．

3．Where should Kate put the medicine after she takes it?

A．In the bag．         B．On the desk．             C．In a cold place．

4．Can a two-year-old baby take the medicine?

A．No，it can't．      B．Yes，but only a little．    C．Only 1／2 teaspoon．

5．Which of the following is TRUE?

A．If Kate's father has a cold，he should take 4 teaspoons a day．

B．Kate should throw the medicine away after December 31，2009．

C．After getting up Kate should take the medicine at once．