Do you always understand the instructions on a bottle of medicine? Here’s one for John. John is twelve years old. He had a bad cold and coughed(咳嗽) day and night. He went to see a doctor and was given some cough medicine. Please read the following instructions and if you can understand them. Cough Medicine: The medicine is for a person with a cough. Shake it well before use. Take it three times each day before meals or before sleep. Dose ( 药量): Age: over 14     2 teaspoonfuls 8~13      1 teaspoonful 4~7       1/2 teaspoonful Dot fit for children below the age of three or old persons with heart trouble. Put it in a cold place. Use it before December 1 st , 2004. 小题1:John should take ____________ a day. A．2 teaspoonfuls B．3 teaspoonfuls C．4 teaspoonfuls D．1 teaspoonful 小题2:John should ___________ before he takes it. A．shake the medicine well B．eat nothing C．do some exercises D．drink a cup of tea 小题3:When people are ____________ years old, they cannot take this medicine. A．eighty B．thirty C．two D．twelve