. Was it __________ the conference of APEC that made Shanghai the focus of the world then?
6. The factory has to stop working for a day _________ the machines can be cleaned.
5. —Jack, could I use your laptop for a while? —_________. Go ahead, please.
4. How do you feel about the food here, compared to _________ in your home town?
3. The students will ________ for the Christmas vacation next week.
2. He climbed silently ________ of seizing the thief ________.