----I’ve looked everywhere, but I haven’t found any black ink.----Then, I’m afraid there is ________left.
--- Is that 120? My brother is seriously ill! ---Ok. Help is _________ .
Have you realized the difficulty we have ____ the problem?
I think that ____ very difficult to learn.
---_______to you _______your great success! ---Thank you very much.
Distinguished guests and friends . _____the ceremony of the 50th Anniversary this morning are our alumni (校友) from home and abroad .