______ different life today is from ______ it was fifty years ago.
His physical disability makes _____ rather difficult for him to find a good job.
-How do you find Xiamen,Cathy? -It’s beautiful coastal city. I have ____ it for my next holiday.
The young man had made so much noise that he not have been allowed to attend the concert.
There happened to be nobody under the wall when it fell down, ____ ?
Do you know ____ that made it possible for them to continue their project?