The fireman couldn’t __________ what thedark thing was through the heavy smoke．
There will be ________ jobs for people because some robots will do the same jobs as people.
On AIDS Day, President Hu Jintao demanded that the problems _________ paid special attention to.
It was from only a few supplies that she hadbought in the village _____ the hostess cooked such anicedinner. [ ]
That is the first time that I _____ at the meeting
