The course _______ for introducing multicultural America ranks first in the list of Popularity Courses among students this term.
29. ___ nice, the food was sold out soon.
24. Who is it up ____ decide whether to go or not?
23. Wang Mei is one of many Chinese teenagers _____ “on the go”
35. He was born ____ a very cold night _____ December.
34. When he knocked at the door, my mother was busy ____ supper.