It will be another 50 years ______ our country is expected to reach the level of a medium developed country.
Although there were so many people in the square, I could ______ my friend.
Jane is not ____ she was ten years ago. She has changed so much.
China as well as the other two super countries _____ sent a man into ____ space.
–When and where shall we meet? -We _______ meet at the station at four this afternoon.
What do you mean _____ saying “out of question”?