【单选题】Directions: read the following sentences and choose the appropriate one to fill in the blank.The doctor told me to ______ medicine three or four times a day, but it hasn’t helped much.
【单选题】A 2-week-old infant who has had no immunizations, sleeps 18 hours a day, weights 3.5 kg, he takes 60 ml of standard infant formula four times a day with no solid food and no iron or vitamin supplement...