Peter King, 15 and Mary King, 13 went to see a doctor together. Peter had a bad cold, so the doctor gave him some pills to take. Mary had a bad cough, so the doctor |gave her some cough medicine.                                                      
These are the words on the bottle of medicine:

Cough Medicine Shake well before use. Take three times daily after meals. Dosage: Adults 2 teaspoonfuls Children 8 -14  1 teaspoonful Child 4-7  1/2 teaspoonful Not suitable for children below the age of 4. Store in a cool place. Use before October 1998.

Mary should take ____ in a day.

A．2 teaspoonfuls	B．3 teaspoonfuls
C．4 teaspoonfuls	D．1 teaspoonful

People aged ____ cannot take this medicine.

A．80

B．15

C．20

D．3

Mary or her mother should ____ the medicine after the tenth month of 1998.

A．throw away	B．take two times
C．stop to take	D．take 3 times more