On your way home you’d better get the medicine at chemist’s; take the pill three times a

问题补充：

On your way home, you’d better get the medicine at chemist’s; take the pill three times a day aftermeals.

A. the;the

B. the,/

C. /,/

D. /,the

答案：

A. the;the

(答案→)B. the,/

C. /,/

D. /,the

解析：考查冠词：句意：在你回家的路上，你最好在药店买药，饭后一天吃三次药片。第一空at the chemists在药店，第二空不填是泛指“三餐”，选B。