Boys reached into the container and pulled one piece of paper out. The girl whose name was written on the paper became his lover or sweet heart for（）.
A.a day
B.a year
C.a month
D.a week
正确答案：B
Boys reached into the container and pulled one piece of paper out. The girl whose name was written on the paper became his lover or sweet heart for（）.
A.a day
B.a year
C.a month
D.a week
正确答案：B