My documents are always ______ out according to the contents(内容) and dates so that I have no trouble in finding them when they _______. 
#103151
A
set; are needed
B
put; need
C
sorted; are needed
D
written; need
推荐题目
_____ in the queue for an hour,Tom suddenly realized that he had left his wallet at home.
#103270
A
To wait
B
Have waited
C
Having waited
D
To have waited
 ______ of danger in the street at night, she had to go home with a friend ____ her.
#101689
A
Warning; following
B
Having warned; following
C
Warned; followed
D
Having been warned; following