______ you’re tried it, you can’t imagine how pleasant it is.
China _______________a high-speed railway network covering almost all its cities with a population of of more than 500,000 by 2015.
Situated on the southeast China coast,Fujian Province is separated by_________180—km strait from Taiwan,__________largest island in China.
一I apologize for having made a mess in your bathroom.。一_______. After all,you didn’t mean it.
— Joe, don’t forget to bring your laptop with you tomorrow, OK? — Oh, thank you. I wouldn’t bring it if you _____ me.
________ that Tom got inside the room to see what was going on.