The sign_____is often found in a reading-room or a library.
#23004
A
NO PHOTOS
B
KEEP QUIET
C
THIS SIDE UP
D
OPEN
推荐题目
--______ will you come back?     --- In an hour.
#22653
A
How soon
B
How often
C
How long
D
How far
-I’m leaving for Europe on vacation tomorrow.-________. 
#750
A
So long
B
Cheers
C
Best wishes
D
Have fun