By the 2030s most people can ________ to live at least 80, which is a big leap for mankind.
---- Tom, did Mr. Li join you in your discussion? ---- No, he _____, but he happened to have fallen ill.
Good heavens! There you are! We _____ anxious about you, and we _____ you back throughout the night.
---- You haven’t got the textbook for my chemistry course yet. ---- I know, and we _____ to get it for the last 5 weeks.
---- Hey. Look where you are going! ---- Oh, I’m terribly sorry ____.
The chairman’s speech ______ the radio when I turned it on.