1. —When and where will the next Summer Olympics be held?
—It will be held ________ July 27th,2012, ________ London,UK.
A. in;in B. at; in C. on;at D. on;in
2. —When did the story take place?
—It took place ________ a rainy night ________ October.
A. at;in B. on;on
C. in;on D. on;in
3. —Where is the meeting room?
—Go ________ the door and turn left.
A. through B. across C. to D. on
