— What do you think of the human and the computer?—A human ____can do some things better than a computer, for example, creating new ideas.
---Why not_____ us ? ----Because I have a lot of work______.
He____25 yuan buying this new book yesterday afternoon.
It’s time for supper now. Let’sit.
----______have you been learning to swim ? ----Half a year.
----_______ did you start studying English ? -----Five years ago.