---Where was ______ you picked up the wallet ? --- Let me see --- , just at the second counter on the left.
Leaders of many countries have been trying to _____ what it is that makes China develop so fast in recent years.
I’m not sure whether I will have anything else to do this evening._____, I will try every possible means to come to your birthday party.
My toothache is killing me.I _____ it _____ away.But now it’s getting worse and worse.
---The exam starts at 9:00 tomorrow morning.---___________ I fail to arrive there on time?
_____ on May Day, the Shanghai Expo has attracted tens of thousands of visitors around the world every day.