–What’s the matter, doctor? --Nothing serious. Take the medicine according to the ______.
#5567
A
introductions
B
explanations
C
suggestions
D
directions
推荐题目
 When we learn English, a large _____ is needed.
#5669
A
spelling
B
vocabulary
C
practice
D
memory
—Would you like something to drink, girls? —Yes, _______, please. 
#5208
A
twocupofcoffee
B
twocup of coffees
C
twocupsofcoffee
D
twocups of coffees